221421759

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{1279}}^1$

素因数の和:1511

約数の個数: 32

約数和(自身を含む): 333742080

約数和(自身を除く): 112320321

約数列:

[1, 3, 13, 23, 39, 69, 193, 299, 579, 897, 1279, 2509, 3837, 4439, 7527, 13317, 16627, 29417, 49881, 57707, 88251, 173121, 246847, 382421, 740541, 1147263, 3209011, 5677481, 9627033, 17032443, 73807253, 221421759]

約数ペア:

[(1, 221421759), (3, 73807253), (13, 17032443), (23, 9627033), (39, 5677481), (69, 3209011), (193, 1147263), (299, 740541), (579, 382421), (897, 246847), (1279, 173121), (2509, 88251), (3837, 57707), (4439, 49881), (7527, 29417), (13317, 16627)]