21409863

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1\times {\mathrm{479}}^1$

素因数の和:846

約数の個数: 16

約数和(自身を含む): 29306880

約数和(自身を除く): 7897017

約数列:

[1, 3, 47, 141, 317, 479, 951, 1437, 14899, 22513, 44697, 67539, 151843, 455529, 7136621, 21409863]

約数ペア:

[(1, 21409863), (3, 7136621), (47, 455529), (141, 151843), (317, 67539), (479, 44697), (951, 22513), (1437, 14899)]