21040110

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{367}}^1$

素因数の和:407

約数の個数: 144

約数和(自身を含む): 68717376

約数和(自身を除く): 47677266

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 30, 35, 39, 42, 45, 49, 63, 65, 70, 78, 90, 91, 98, 105, 117, 126, 130, 147, 182, 195, 210, 234, 245, 273, 294, 315, 367, 390, 441, 455, 490, 546, 585, 630, 637, 734, 735, 819, 882, 910, 1101, 1170, 1274, 1365, 1470, 1638, 1835, 1911, 2202, 2205, 2569, 2730, 3185, 3303, 3670, 3822, 4095, 4410, 4771, 5138, 5505, 5733, 6370, 6606, 7707, 8190, 9542, 9555, 11010, 11466, 12845, 14313, 15414, 16515, 17983, 19110, 23121, 23855, 25690, 28626, 28665, 33030, 33397, 35966, 38535, 42939, 46242, 47710, 53949, 57330, 66794, 71565, 77070, 85878, 89915, 100191, 107898, 115605, 143130, 161847, 166985, 179830, 200382, 214695, 231210, 233779, 269745, 300573, 323694, 333970, 429390, 467558, 500955, 539490, 601146, 701337, 809235, 1001910, 1168895, 1402674, 1502865, 1618470, 2104011, 2337790, 3005730, 3506685, 4208022, 7013370, 10520055, 21040110]

約数ペア:

[(1, 21040110), (2, 10520055), (3, 7013370), (5, 4208022), (6, 3506685), (7, 3005730), (9, 2337790), (10, 2104011), (13, 1618470), (14, 1502865), (15, 1402674), (18, 1168895), (21, 1001910), (26, 809235), (30, 701337), (35, 601146), (39, 539490), (42, 500955), (45, 467558), (49, 429390), (63, 333970), (65, 323694), (70, 300573), (78, 269745), (90, 233779), (91, 231210), (98, 214695), (105, 200382), (117, 179830), (126, 166985), (130, 161847), (147, 143130), (182, 115605), (195, 107898), (210, 100191), (234, 89915), (245, 85878), (273, 77070), (294, 71565), (315, 66794), (367, 57330), (390, 53949), (441, 47710), (455, 46242), (490, 42939), (546, 38535), (585, 35966), (630, 33397), (637, 33030), (734, 28665), (735, 28626), (819, 25690), (882, 23855), (910, 23121), (1101, 19110), (1170, 17983), (1274, 16515), (1365, 15414), (1470, 14313), (1638, 12845), (1835, 11466), (1911, 11010), (2202, 9555), (2205, 9542), (2569, 8190), (2730, 7707), (3185, 6606), (3303, 6370), (3670, 5733), (3822, 5505), (4095, 5138), (4410, 4771)]