21656219

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2039}}^1$

素因数の和:2114

約数の個数: 16

約数和(自身を含む): 25132800

約数和(自身を除く): 3476581

約数列:

[1, 13, 19, 43, 247, 559, 817, 2039, 10621, 26507, 38741, 87677, 503633, 1139801, 1665863, 21656219]

約数ペア:

[(1, 21656219), (13, 1665863), (19, 1139801), (43, 503633), (247, 87677), (559, 38741), (817, 26507), (2039, 10621)]