21965672

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{144511}}^1$

素因数の和:144536

約数の個数: 16

約数和(自身を含む): 43353600

約数和(自身を除く): 21387928

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 144511, 289022, 578044, 1156088, 2745709, 5491418, 10982836, 21965672]

約数ペア:

[(1, 21965672), (2, 10982836), (4, 5491418), (8, 2745709), (19, 1156088), (38, 578044), (76, 289022), (152, 144511)]