17948441

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:221

約数の個数: 24

約数和(自身を含む): 22190784

約数和(自身を除く): 4242343

約数列:

[1, 7, 23, 37, 131, 161, 259, 529, 851, 917, 3013, 3703, 4847, 5957, 19573, 21091, 33929, 69299, 111481, 137011, 485093, 780367, 2564063, 17948441]

約数ペア:

[(1, 17948441), (7, 2564063), (23, 780367), (37, 485093), (131, 137011), (161, 111481), (259, 69299), (529, 33929), (851, 21091), (917, 19573), (3013, 5957), (3703, 4847)]