21085060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{55487}}^1$

素因数の和:55515

約数の個数: 24

約数和(自身を含む): 46609920

約数和(自身を除く): 25524860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 55487, 110974, 221948, 277435, 554870, 1054253, 1109740, 2108506, 4217012, 5271265, 10542530, 21085060]

約数ペア:

[(1, 21085060), (2, 10542530), (4, 5271265), (5, 4217012), (10, 2108506), (19, 1109740), (20, 1054253), (38, 554870), (76, 277435), (95, 221948), (190, 110974), (380, 55487)]