20571710

素因数分解:

$2^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{13103}}^1$

素因数の和:13267

約数の個数: 16

約数和(自身を含む): 37267776

約数和(自身を除く): 16696066

約数列:

[1, 2, 5, 10, 157, 314, 785, 1570, 13103, 26206, 65515, 131030, 2057171, 4114342, 10285855, 20571710]

約数ペア:

[(1, 20571710), (2, 10285855), (5, 4114342), (10, 2057171), (157, 131030), (314, 65515), (785, 26206), (1570, 13103)]