21238530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{707951}}^1$

素因数の和:707961

約数の個数: 16

約数和(自身を含む): 50972544

約数和(自身を除く): 29734014

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 707951, 1415902, 2123853, 3539755, 4247706, 7079510, 10619265, 21238530]

約数ペア:

[(1, 21238530), (2, 10619265), (3, 7079510), (5, 4247706), (6, 3539755), (10, 2123853), (15, 1415902), (30, 707951)]