20982710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6971}}^1$

素因数の和:7028

約数の個数: 32

約数和(自身を含む): 44174592

約数和(自身を除く): 23191882

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 215, 301, 430, 602, 1505, 3010, 6971, 13942, 34855, 48797, 69710, 97594, 243985, 299753, 487970, 599506, 1498765, 2098271, 2997530, 4196542, 10491355, 20982710]

約数ペア:

[(1, 20982710), (2, 10491355), (5, 4196542), (7, 2997530), (10, 2098271), (14, 1498765), (35, 599506), (43, 487970), (70, 299753), (86, 243985), (215, 97594), (301, 69710), (430, 48797), (602, 34855), (1505, 13942), (3010, 6971)]