21045674

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 35392896

約数和(自身を除く): 14347222

約数列:

[1, 2, 13, 26, 37, 74, 131, 167, 262, 334, 481, 962, 1703, 2171, 3406, 4342, 4847, 6179, 9694, 12358, 21877, 43754, 63011, 80327, 126022, 160654, 284401, 568802, 809449, 1618898, 10522837, 21045674]

約数ペア:

[(1, 21045674), (2, 10522837), (13, 1618898), (26, 809449), (37, 568802), (74, 284401), (131, 160654), (167, 126022), (262, 80327), (334, 63011), (481, 43754), (962, 21877), (1703, 12358), (2171, 9694), (3406, 6179), (4342, 4847)]