21217352

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{204013}}^1$

素因数の和:204032

約数の個数: 16

約数和(自身を含む): 42842940

約数和(自身を除く): 21625588

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 204013, 408026, 816052, 1632104, 2652169, 5304338, 10608676, 21217352]

約数ペア:

[(1, 21217352), (2, 10608676), (4, 5304338), (8, 2652169), (13, 1632104), (26, 816052), (52, 408026), (104, 204013)]