21656553989

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{941221}}^1$

素因数の和:941420

約数の個数: 16

約数和(自身を含む): 26203620480

約数和(自身を除く): 4547066491

約数列:

[1, 7, 19, 133, 173, 1211, 3287, 23009, 941221, 6588547, 17883199, 125182393, 162831233, 1139818631, 3093793427, 21656553989]

約数ペア:

[(1, 21656553989), (7, 3093793427), (19, 1139818631), (133, 162831233), (173, 125182393), (1211, 17883199), (3287, 6588547), (23009, 941221)]