21238710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{707957}}^1$

素因数の和:707967

約数の個数: 16

約数和(自身を含む): 50972976

約数和(自身を除く): 29734266

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 707957, 1415914, 2123871, 3539785, 4247742, 7079570, 10619355, 21238710]

約数ペア:

[(1, 21238710), (2, 10619355), (3, 7079570), (5, 4247742), (6, 3539785), (10, 2123871), (15, 1415914), (30, 707957)]