21642628

素因数分解:

$2^2\times 7^1\times {\mathrm{499}}^1\times {\mathrm{1549}}^1$

素因数の和:2059

約数の個数: 24

約数和(自身を含む): 43400000

約数和(自身を除く): 21757372

約数列:

[1, 2, 4, 7, 14, 28, 499, 998, 1549, 1996, 3098, 3493, 6196, 6986, 10843, 13972, 21686, 43372, 772951, 1545902, 3091804, 5410657, 10821314, 21642628]

約数ペア:

[(1, 21642628), (2, 10821314), (4, 5410657), (7, 3091804), (14, 1545902), (28, 772951), (499, 43372), (998, 21686), (1549, 13972), (1996, 10843), (3098, 6986), (3493, 6196)]