21026880

素因数分解:

$2^6\times 3^2\times 5^1\times 7^2\times {\mathrm{149}}^1$

素因数の和:186

約数の個数: 252

約数和(自身を含む): 84696300

約数和(自身を除く): 63669420

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 149, 160, 168, 180, 192, 196, 210, 224, 240, 245, 252, 280, 288, 294, 298, 315, 320, 336, 360, 392, 420, 441, 447, 448, 480, 490, 504, 560, 576, 588, 596, 630, 672, 720, 735, 745, 784, 840, 882, 894, 960, 980, 1008, 1043, 1120, 1176, 1192, 1260, 1341, 1344, 1440, 1470, 1490, 1568, 1680, 1764, 1788, 1960, 2016, 2086, 2205, 2235, 2240, 2352, 2384, 2520, 2682, 2880, 2940, 2980, 3129, 3136, 3360, 3528, 3576, 3920, 4032, 4172, 4410, 4470, 4704, 4768, 5040, 5215, 5364, 5880, 5960, 6258, 6705, 6720, 7056, 7152, 7301, 7840, 8344, 8820, 8940, 9387, 9408, 9536, 10080, 10430, 10728, 11760, 11920, 12516, 13410, 14112, 14304, 14602, 15645, 15680, 16688, 17640, 17880, 18774, 20160, 20860, 21456, 21903, 23520, 23840, 25032, 26820, 28224, 28608, 29204, 31290, 33376, 35280, 35760, 36505, 37548, 41720, 42912, 43806, 46935, 47040, 47680, 50064, 53640, 58408, 62580, 65709, 66752, 70560, 71520, 73010, 75096, 83440, 85824, 87612, 93870, 100128, 107280, 109515, 116816, 125160, 131418, 141120, 143040, 146020, 150192, 166880, 175224, 187740, 200256, 214560, 219030, 233632, 250320, 262836, 292040, 300384, 328545, 333760, 350448, 375480, 429120, 438060, 467264, 500640, 525672, 584080, 600768, 657090, 700896, 750960, 876120, 1001280, 1051344, 1168160, 1314180, 1401792, 1501920, 1752240, 2102688, 2336320, 2628360, 3003840, 3504480, 4205376, 5256720, 7008960, 10513440, 21026880]

約数ペア:

[(1, 21026880), (2, 10513440), (3, 7008960), (4, 5256720), (5, 4205376), (6, 3504480), (7, 3003840), (8, 2628360), (9, 2336320), (10, 2102688), (12, 1752240), (14, 1501920), (15, 1401792), (16, 1314180), (18, 1168160), (20, 1051344), (21, 1001280), (24, 876120), (28, 750960), (30, 700896), (32, 657090), (35, 600768), (36, 584080), (40, 525672), (42, 500640), (45, 467264), (48, 438060), (49, 429120), (56, 375480), (60, 350448), (63, 333760), (64, 328545), (70, 300384), (72, 292040), (80, 262836), (84, 250320), (90, 233632), (96, 219030), (98, 214560), (105, 200256), (112, 187740), (120, 175224), (126, 166880), (140, 150192), (144, 146020), (147, 143040), (149, 141120), (160, 131418), (168, 125160), (180, 116816), (192, 109515), (196, 107280), (210, 100128), (224, 93870), (240, 87612), (245, 85824), (252, 83440), (280, 75096), (288, 73010), (294, 71520), (298, 70560), (315, 66752), (320, 65709), (336, 62580), (360, 58408), (392, 53640), (420, 50064), (441, 47680), (447, 47040), (448, 46935), (480, 43806), (490, 42912), (504, 41720), (560, 37548), (576, 36505), (588, 35760), (596, 35280), (630, 33376), (672, 31290), (720, 29204), (735, 28608), (745, 28224), (784, 26820), (840, 25032), (882, 23840), (894, 23520), (960, 21903), (980, 21456), (1008, 20860), (1043, 20160), (1120, 18774), (1176, 17880), (1192, 17640), (1260, 16688), (1341, 15680), (1344, 15645), (1440, 14602), (1470, 14304), (1490, 14112), (1568, 13410), (1680, 12516), (1764, 11920), (1788, 11760), (1960, 10728), (2016, 10430), (2086, 10080), (2205, 9536), (2235, 9408), (2240, 9387), (2352, 8940), (2384, 8820), (2520, 8344), (2682, 7840), (2880, 7301), (2940, 7152), (2980, 7056), (3129, 6720), (3136, 6705), (3360, 6258), (3528, 5960), (3576, 5880), (3920, 5364), (4032, 5215), (4172, 5040), (4410, 4768), (4470, 4704)]