20815157

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1409}}^1$

素因数の和:1516

約数の個数: 16

約数和(自身を含む): 24364800

約数和(自身を除く): 3549643

約数列:

[1, 11, 17, 79, 187, 869, 1343, 1409, 14773, 15499, 23953, 111311, 263483, 1224421, 1892287, 20815157]

約数ペア:

[(1, 20815157), (11, 1892287), (17, 1224421), (79, 263483), (187, 111311), (869, 23953), (1343, 15499), (1409, 14773)]