219789968

素因数分解:

$2^4\times {\mathrm{1289}}^1\times {\mathrm{10657}}^1$

素因数の和:11954

約数の個数: 20

約数和(自身を含む): 426213420

約数和(自身を除く): 206423452

約数列:

[1, 2, 4, 8, 16, 1289, 2578, 5156, 10312, 10657, 20624, 21314, 42628, 85256, 170512, 13736873, 27473746, 54947492, 109894984, 219789968]

約数ペア:

[(1, 219789968), (2, 109894984), (4, 54947492), (8, 27473746), (16, 13736873), (1289, 170512), (2578, 85256), (5156, 42628), (10312, 21314), (10657, 20624)]