21558310

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{941}}^1$

素因数の和:1056

約数の個数: 32

約数和(自身を含む): 40694400

約数和(自身を除く): 19136090

約数列:

[1, 2, 5, 10, 29, 58, 79, 145, 158, 290, 395, 790, 941, 1882, 2291, 4582, 4705, 9410, 11455, 22910, 27289, 54578, 74339, 136445, 148678, 272890, 371695, 743390, 2155831, 4311662, 10779155, 21558310]

約数ペア:

[(1, 21558310), (2, 10779155), (5, 4311662), (10, 2155831), (29, 743390), (58, 371695), (79, 272890), (145, 148678), (158, 136445), (290, 74339), (395, 54578), (790, 27289), (941, 22910), (1882, 11455), (2291, 9410), (4582, 4705)]