19675917

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{647}}^1$

素因数の和:793

約数の個数: 24

約数和(自身を含む): 29652480

約数和(自身を除く): 9976563

約数列:

[1, 3, 9, 31, 93, 109, 279, 327, 647, 981, 1941, 3379, 5823, 10137, 20057, 30411, 60171, 70523, 180513, 211569, 634707, 2186213, 6558639, 19675917]

約数ペア:

[(1, 19675917), (3, 6558639), (9, 2186213), (31, 634707), (93, 211569), (109, 180513), (279, 70523), (327, 60171), (647, 30411), (981, 20057), (1941, 10137), (3379, 5823)]