21681036016

素因数分解:

$2^4\times {\mathrm{727}}^1\times {\mathrm{1863913}}^1$

素因数の和:1864648

約数の個数: 20

約数和(自身を含む): 42064811152

約数和(自身を除く): 20383775136

約数列:

[1, 2, 4, 8, 16, 727, 1454, 2908, 5816, 11632, 1863913, 3727826, 7455652, 14911304, 29822608, 1355064751, 2710129502, 5420259004, 10840518008, 21681036016]

約数ペア:

[(1, 21681036016), (2, 10840518008), (4, 5420259004), (8, 2710129502), (16, 1355064751), (727, 29822608), (1454, 14911304), (2908, 7455652), (5816, 3727826), (11632, 1863913)]