21008889722

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{3391813}}^1$

素因数の和:3391997

約数の個数: 16

約数和(自身を含む): 33375449760

約数和(自身を除く): 12366560038

約数列:

[1, 2, 19, 38, 163, 326, 3097, 6194, 3391813, 6783626, 64444447, 128888894, 552865519, 1105731038, 10504444861, 21008889722]

約数ペア:

[(1, 21008889722), (2, 10504444861), (19, 1105731038), (38, 552865519), (163, 128888894), (326, 64444447), (3097, 6783626), (6194, 3391813)]