21000618124

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{229}}^1\times {\mathrm{3271}}^1$

素因数の和:3710

約数の個数: 48

約数和(自身を含む): 38013310720

約数和(自身を除く): 17012692596

約数列:

[1, 2, 4, 43, 86, 163, 172, 229, 326, 458, 652, 916, 3271, 6542, 7009, 9847, 13084, 14018, 19694, 28036, 37327, 39388, 74654, 140653, 149308, 281306, 533173, 562612, 749059, 1066346, 1498118, 1605061, 2132692, 2996236, 3210122, 6420244, 22926439, 32209537, 45852878, 64419074, 91705756, 122096617, 128838148, 244193234, 488386468, 5250154531, 10500309062, 21000618124]

約数ペア:

[(1, 21000618124), (2, 10500309062), (4, 5250154531), (43, 488386468), (86, 244193234), (163, 128838148), (172, 122096617), (229, 91705756), (326, 64419074), (458, 45852878), (652, 32209537), (916, 22926439), (3271, 6420244), (6542, 3210122), (7009, 2996236), (9847, 2132692), (13084, 1605061), (14018, 1498118), (19694, 1066346), (28036, 749059), (37327, 562612), (39388, 533173), (74654, 281306), (140653, 149308)]