15903981

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{491}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 23793120

約数和(自身を除く): 7889139

約数列:

[1, 3, 9, 59, 61, 177, 183, 491, 531, 549, 1473, 3599, 4419, 10797, 28969, 29951, 32391, 86907, 89853, 260721, 269559, 1767109, 5301327, 15903981]

約数ペア:

[(1, 15903981), (3, 5301327), (9, 1767109), (59, 269559), (61, 260721), (177, 89853), (183, 86907), (491, 32391), (531, 29951), (549, 28969), (1473, 10797), (3599, 4419)]