21559830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{718661}}^1$

素因数の和:718671

約数の個数: 16

約数和(自身を含む): 51743664

約数和(自身を除く): 30183834

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 718661, 1437322, 2155983, 3593305, 4311966, 7186610, 10779915, 21559830]

約数ペア:

[(1, 21559830), (2, 10779915), (3, 7186610), (5, 4311966), (6, 3593305), (10, 2155983), (15, 1437322), (30, 718661)]