21002410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{773}}^1$

素因数の和:823

約数の個数: 64

約数和(自身を含む): 46811520

約数和(自身を除く): 25809110

約数列:

[1, 2, 5, 10, 11, 13, 19, 22, 26, 38, 55, 65, 95, 110, 130, 143, 190, 209, 247, 286, 418, 494, 715, 773, 1045, 1235, 1430, 1546, 2090, 2470, 2717, 3865, 5434, 7730, 8503, 10049, 13585, 14687, 17006, 20098, 27170, 29374, 42515, 50245, 73435, 85030, 100490, 110539, 146870, 161557, 190931, 221078, 323114, 381862, 552695, 807785, 954655, 1105390, 1615570, 1909310, 2100241, 4200482, 10501205, 21002410]

約数ペア:

[(1, 21002410), (2, 10501205), (5, 4200482), (10, 2100241), (11, 1909310), (13, 1615570), (19, 1105390), (22, 954655), (26, 807785), (38, 552695), (55, 381862), (65, 323114), (95, 221078), (110, 190931), (130, 161557), (143, 146870), (190, 110539), (209, 100490), (247, 85030), (286, 73435), (418, 50245), (494, 42515), (715, 29374), (773, 27170), (1045, 20098), (1235, 17006), (1430, 14687), (1546, 13585), (2090, 10049), (2470, 8503), (2717, 7730), (3865, 5434)]