21000481204

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{407713}}^1$

素因数の和:407959

約数の個数: 24

約数和(自身を含む): 37444453760

約数和(自身を除く): 16443972556

約数列:

[1, 2, 4, 79, 158, 163, 316, 326, 652, 12877, 25754, 51508, 407713, 815426, 1630852, 32209327, 64418654, 66457219, 128837308, 132914438, 265828876, 5250120301, 10500240602, 21000481204]

約数ペア:

[(1, 21000481204), (2, 10500240602), (4, 5250120301), (79, 265828876), (158, 132914438), (163, 128837308), (316, 66457219), (326, 64418654), (652, 32209327), (12877, 1630852), (25754, 815426), (51508, 407713)]