21000316631

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{444517}}^1$

素因数の和:444938

約数の個数: 16

約数和(自身を含む): 25476215616

約数和(自身を除く): 4475898985

約数列:

[1, 7, 17, 119, 397, 2779, 6749, 47243, 444517, 3111619, 7556789, 52897523, 176473249, 1235312743, 3000045233, 21000316631]

約数ペア:

[(1, 21000316631), (7, 3000045233), (17, 1235312743), (119, 176473249), (397, 52897523), (2779, 7556789), (6749, 3111619), (47243, 444517)]