20661585

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{28111}}^1$

素因数の和:28133

約数の個数: 24

約数和(自身を含む): 38457216

約数和(自身を除く): 17795631

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 28111, 84333, 140555, 196777, 421665, 590331, 983885, 1377439, 2951655, 4132317, 6887195, 20661585]

約数ペア:

[(1, 20661585), (3, 6887195), (5, 4132317), (7, 2951655), (15, 1377439), (21, 983885), (35, 590331), (49, 421665), (105, 196777), (147, 140555), (245, 84333), (735, 28111)]