21000724726

素因数分解:

$2^1\times {\mathrm{163}}^1\times {\mathrm{251}}^1\times {\mathrm{256651}}^1$

素因数の和:257067

約数の個数: 16

約数和(自身を含む): 31820741568

約数和(自身を除く): 10820016842

約数列:

[1, 2, 163, 251, 326, 502, 40913, 81826, 256651, 513302, 41834113, 64419401, 83668226, 128838802, 10500362363, 21000724726]

約数ペア:

[(1, 21000724726), (2, 10500362363), (163, 128838802), (251, 83668226), (326, 64419401), (502, 41834113), (40913, 513302), (81826, 256651)]