21495110

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:142

約数の個数: 96

約数和(自身を含む): 50595840

約数和(自身を除く): 29100730

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 26, 35, 46, 65, 70, 79, 91, 115, 130, 158, 161, 169, 182, 230, 299, 322, 338, 395, 455, 553, 598, 790, 805, 845, 910, 1027, 1106, 1183, 1495, 1610, 1690, 1817, 2054, 2093, 2366, 2765, 2990, 3634, 3887, 4186, 5135, 5530, 5915, 7189, 7774, 9085, 10270, 10465, 11830, 12719, 13351, 14378, 18170, 19435, 20930, 23621, 25438, 26702, 27209, 35945, 38870, 47242, 54418, 63595, 66755, 71890, 93457, 118105, 127190, 133510, 136045, 165347, 186914, 236210, 272090, 307073, 330694, 467285, 614146, 826735, 934570, 1535365, 1653470, 2149511, 3070730, 4299022, 10747555, 21495110]

約数ペア:

[(1, 21495110), (2, 10747555), (5, 4299022), (7, 3070730), (10, 2149511), (13, 1653470), (14, 1535365), (23, 934570), (26, 826735), (35, 614146), (46, 467285), (65, 330694), (70, 307073), (79, 272090), (91, 236210), (115, 186914), (130, 165347), (158, 136045), (161, 133510), (169, 127190), (182, 118105), (230, 93457), (299, 71890), (322, 66755), (338, 63595), (395, 54418), (455, 47242), (553, 38870), (598, 35945), (790, 27209), (805, 26702), (845, 25438), (910, 23621), (1027, 20930), (1106, 19435), (1183, 18170), (1495, 14378), (1610, 13351), (1690, 12719), (1817, 11830), (2054, 10465), (2093, 10270), (2366, 9085), (2765, 7774), (2990, 7189), (3634, 5915), (3887, 5530), (4186, 5135)]