21880450

素因数分解:

$2^1\times 5^2\times {\mathrm{239}}^1\times {\mathrm{1831}}^1$

素因数の和:2082

約数の個数: 24

約数和(自身を含む): 40890240

約数和(自身を除く): 19009790

約数列:

[1, 2, 5, 10, 25, 50, 239, 478, 1195, 1831, 2390, 3662, 5975, 9155, 11950, 18310, 45775, 91550, 437609, 875218, 2188045, 4376090, 10940225, 21880450]

約数ペア:

[(1, 21880450), (2, 10940225), (5, 4376090), (10, 2188045), (25, 875218), (50, 437609), (239, 91550), (478, 45775), (1195, 18310), (1831, 11950), (2390, 9155), (3662, 5975)]