18221421

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{541}}^1$

素因数の和:756

約数の個数: 16

約数和(自身を含む): 24801920

約数和(自身を除く): 6580499

約数列:

[1, 3, 103, 109, 309, 327, 541, 1623, 11227, 33681, 55723, 58969, 167169, 176907, 6073807, 18221421]

約数ペア:

[(1, 18221421), (3, 6073807), (103, 176907), (109, 167169), (309, 58969), (327, 55723), (541, 33681), (1623, 11227)]