21096460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 59754240

約数和(自身を除く): 38657780

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 49, 55, 70, 76, 77, 95, 98, 103, 110, 133, 140, 154, 190, 196, 206, 209, 220, 245, 266, 308, 380, 385, 412, 418, 490, 515, 532, 539, 665, 721, 770, 836, 931, 980, 1030, 1045, 1078, 1133, 1330, 1442, 1463, 1540, 1862, 1957, 2060, 2090, 2156, 2266, 2660, 2695, 2884, 2926, 3605, 3724, 3914, 4180, 4532, 4655, 5047, 5390, 5665, 5852, 7210, 7315, 7828, 7931, 9310, 9785, 10094, 10241, 10780, 11330, 13699, 14420, 14630, 15862, 18620, 19570, 20188, 20482, 21527, 22660, 25235, 27398, 29260, 31724, 39140, 39655, 40964, 43054, 50470, 51205, 54796, 55517, 68495, 79310, 86108, 95893, 100940, 102410, 107635, 111034, 136990, 150689, 158620, 191786, 204820, 215270, 222068, 273980, 277585, 301378, 383572, 430540, 479465, 555170, 602756, 753445, 958930, 1054823, 1110340, 1506890, 1917860, 2109646, 3013780, 4219292, 5274115, 10548230, 21096460]

約数ペア:

[(1, 21096460), (2, 10548230), (4, 5274115), (5, 4219292), (7, 3013780), (10, 2109646), (11, 1917860), (14, 1506890), (19, 1110340), (20, 1054823), (22, 958930), (28, 753445), (35, 602756), (38, 555170), (44, 479465), (49, 430540), (55, 383572), (70, 301378), (76, 277585), (77, 273980), (95, 222068), (98, 215270), (103, 204820), (110, 191786), (133, 158620), (140, 150689), (154, 136990), (190, 111034), (196, 107635), (206, 102410), (209, 100940), (220, 95893), (245, 86108), (266, 79310), (308, 68495), (380, 55517), (385, 54796), (412, 51205), (418, 50470), (490, 43054), (515, 40964), (532, 39655), (539, 39140), (665, 31724), (721, 29260), (770, 27398), (836, 25235), (931, 22660), (980, 21527), (1030, 20482), (1045, 20188), (1078, 19570), (1133, 18620), (1330, 15862), (1442, 14630), (1463, 14420), (1540, 13699), (1862, 11330), (1957, 10780), (2060, 10241), (2090, 10094), (2156, 9785), (2266, 9310), (2660, 7931), (2695, 7828), (2884, 7315), (2926, 7210), (3605, 5852), (3724, 5665), (3914, 5390), (4180, 5047), (4532, 4655)]