21018030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63691}}^1$

素因数の和:63712

約数の個数: 32

約数和(自身を含む): 55029888

約数和(自身を除く): 34011858

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 63691, 127382, 191073, 318455, 382146, 636910, 700601, 955365, 1401202, 1910730, 2101803, 3503005, 4203606, 7006010, 10509015, 21018030]

約数ペア:

[(1, 21018030), (2, 10509015), (3, 7006010), (5, 4203606), (6, 3503005), (10, 2101803), (11, 1910730), (15, 1401202), (22, 955365), (30, 700601), (33, 636910), (55, 382146), (66, 318455), (110, 191073), (165, 127382), (330, 63691)]