21238630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{303409}}^1$

素因数の和:303423

約数の個数: 16

約数和(自身を含む): 43691040

約数和(自身を除く): 22452410

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 303409, 606818, 1517045, 2123863, 3034090, 4247726, 10619315, 21238630]

約数ペア:

[(1, 21238630), (2, 10619315), (5, 4247726), (7, 3034090), (10, 2123863), (14, 1517045), (35, 606818), (70, 303409)]