1998634561

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{383}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 2583834624

約数和(自身を除く): 585200063

約数列:

[1, 7, 11, 61, 77, 101, 121, 383, 427, 671, 707, 847, 1111, 2681, 4213, 4697, 6161, 7381, 7777, 12221, 23363, 29491, 38683, 43127, 46343, 51667, 67771, 85547, 163541, 256993, 270781, 324401, 425513, 474397, 745481, 1798951, 2359663, 2826923, 2978591, 4680643, 5218367, 16517641, 19788461, 25956293, 32764501, 181694051, 285519223, 1998634561]

約数ペア:

[(1, 1998634561), (7, 285519223), (11, 181694051), (61, 32764501), (77, 25956293), (101, 19788461), (121, 16517641), (383, 5218367), (427, 4680643), (671, 2978591), (707, 2826923), (847, 2359663), (1111, 1798951), (2681, 745481), (4213, 474397), (4697, 425513), (6161, 324401), (7381, 270781), (7777, 256993), (12221, 163541), (23363, 85547), (29491, 67771), (38683, 51667), (43127, 46343)]