21018010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1511}}^1$

素因数の和:1638

約数の個数: 32

約数和(自身を含む): 41150592

約数和(自身を除く): 20132582

約数列:

[1, 2, 5, 10, 13, 26, 65, 107, 130, 214, 535, 1070, 1391, 1511, 2782, 3022, 6955, 7555, 13910, 15110, 19643, 39286, 98215, 161677, 196430, 323354, 808385, 1616770, 2101801, 4203602, 10509005, 21018010]

約数ペア:

[(1, 21018010), (2, 10509005), (5, 4203602), (10, 2101801), (13, 1616770), (26, 808385), (65, 323354), (107, 196430), (130, 161677), (214, 98215), (535, 39286), (1070, 19643), (1391, 15110), (1511, 13910), (2782, 7555), (3022, 6955)]