21553331

素因数分解:

${\mathrm{17}}^3\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:199

約数の個数: 16

約数和(自身を含む): 23677920

約数和(自身を除く): 2124589

約数列:

[1, 17, 41, 107, 289, 697, 1819, 4387, 4913, 11849, 30923, 74579, 201433, 525691, 1267843, 21553331]

約数ペア:

[(1, 21553331), (17, 1267843), (41, 525691), (107, 201433), (289, 74579), (697, 30923), (1819, 11849), (4387, 4913)]