21626423

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:315

約数の個数: 24

約数和(自身を含む): 27177696

約数和(自身を除く): 5551273

約数列:

[1, 7, 13, 91, 101, 169, 181, 707, 1183, 1267, 1313, 2353, 9191, 16471, 17069, 18281, 30589, 119483, 127967, 214123, 237653, 1663571, 3089489, 21626423]

約数ペア:

[(1, 21626423), (7, 3089489), (13, 1663571), (91, 237653), (101, 214123), (169, 127967), (181, 119483), (707, 30589), (1183, 18281), (1267, 17069), (1313, 16471), (2353, 9191)]