21481523

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1861}}^1$

素因数の和:1982

約数の個数: 16

約数和(自身を含む): 26276544

約数和(自身を除く): 4795021

約数列:

[1, 7, 17, 97, 119, 679, 1649, 1861, 11543, 13027, 31637, 180517, 221459, 1263619, 3068789, 21481523]

約数ペア:

[(1, 21481523), (7, 3068789), (17, 1263619), (97, 221459), (119, 180517), (679, 31637), (1649, 13027), (1861, 11543)]