21644280

素因数分解:

$2^3\times 3^3\times 5^1\times 7^2\times {\mathrm{409}}^1$

素因数の和:443

約数の個数: 192

約数和(自身を含む): 84132000

約数和(自身を除く): 62487720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 168, 180, 189, 196, 210, 216, 245, 252, 270, 280, 294, 315, 360, 378, 392, 409, 420, 441, 490, 504, 540, 588, 630, 735, 756, 818, 840, 882, 945, 980, 1080, 1176, 1227, 1260, 1323, 1470, 1512, 1636, 1764, 1890, 1960, 2045, 2205, 2454, 2520, 2646, 2863, 2940, 3272, 3528, 3681, 3780, 4090, 4410, 4908, 5292, 5726, 5880, 6135, 6615, 7362, 7560, 8180, 8589, 8820, 9816, 10584, 11043, 11452, 12270, 13230, 14315, 14724, 16360, 17178, 17640, 18405, 20041, 22086, 22904, 24540, 25767, 26460, 28630, 29448, 34356, 36810, 40082, 42945, 44172, 49080, 51534, 52920, 55215, 57260, 60123, 68712, 73620, 77301, 80164, 85890, 88344, 100205, 103068, 110430, 114520, 120246, 128835, 147240, 154602, 160328, 171780, 180369, 200410, 206136, 220860, 240492, 257670, 300615, 309204, 343560, 360738, 386505, 400820, 441720, 480984, 515340, 541107, 601230, 618408, 721476, 773010, 801640, 901845, 1030680, 1082214, 1202460, 1442952, 1546020, 1803690, 2164428, 2404920, 2705535, 3092040, 3607380, 4328856, 5411070, 7214760, 10822140, 21644280]

約数ペア:

[(1, 21644280), (2, 10822140), (3, 7214760), (4, 5411070), (5, 4328856), (6, 3607380), (7, 3092040), (8, 2705535), (9, 2404920), (10, 2164428), (12, 1803690), (14, 1546020), (15, 1442952), (18, 1202460), (20, 1082214), (21, 1030680), (24, 901845), (27, 801640), (28, 773010), (30, 721476), (35, 618408), (36, 601230), (40, 541107), (42, 515340), (45, 480984), (49, 441720), (54, 400820), (56, 386505), (60, 360738), (63, 343560), (70, 309204), (72, 300615), (84, 257670), (90, 240492), (98, 220860), (105, 206136), (108, 200410), (120, 180369), (126, 171780), (135, 160328), (140, 154602), (147, 147240), (168, 128835), (180, 120246), (189, 114520), (196, 110430), (210, 103068), (216, 100205), (245, 88344), (252, 85890), (270, 80164), (280, 77301), (294, 73620), (315, 68712), (360, 60123), (378, 57260), (392, 55215), (409, 52920), (420, 51534), (441, 49080), (490, 44172), (504, 42945), (540, 40082), (588, 36810), (630, 34356), (735, 29448), (756, 28630), (818, 26460), (840, 25767), (882, 24540), (945, 22904), (980, 22086), (1080, 20041), (1176, 18405), (1227, 17640), (1260, 17178), (1323, 16360), (1470, 14724), (1512, 14315), (1636, 13230), (1764, 12270), (1890, 11452), (1960, 11043), (2045, 10584), (2205, 9816), (2454, 8820), (2520, 8589), (2646, 8180), (2863, 7560), (2940, 7362), (3272, 6615), (3528, 6135), (3681, 5880), (3780, 5726), (4090, 5292), (4410, 4908)]