221940251

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1\times {\mathrm{809}}^1$

素因数の和:1318

約数の個数: 16

約数和(自身を含む): 244944000

約数和(自身を除く): 23003749

約数列:

[1, 13, 47, 449, 611, 809, 5837, 10517, 21103, 38023, 274339, 363241, 494299, 4722133, 17072327, 221940251]

約数ペア:

[(1, 221940251), (13, 17072327), (47, 4722133), (449, 494299), (611, 363241), (809, 274339), (5837, 38023), (10517, 21103)]