20123818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4139}}^1$

素因数の和:4182

約数の個数: 32

約数和(自身を含む): 37558080

約数和(自身を除く): 17434262

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 143, 187, 221, 286, 374, 442, 2431, 4139, 4862, 8278, 45529, 53807, 70363, 91058, 107614, 140726, 591877, 773993, 914719, 1183754, 1547986, 1829438, 10061909, 20123818]

約数ペア:

[(1, 20123818), (2, 10061909), (11, 1829438), (13, 1547986), (17, 1183754), (22, 914719), (26, 773993), (34, 591877), (143, 140726), (187, 107614), (221, 91058), (286, 70363), (374, 53807), (442, 45529), (2431, 8278), (4139, 4862)]