220121769

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{40471}}^1$

素因数の和:40525

約数の個数: 24

約数和(自身を含む): 350649408

約数和(自身を除く): 130527639

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 5439, 40471, 121413, 283297, 849891, 1497427, 1983079, 4492281, 5949237, 10481989, 31445967, 73373923, 220121769]

約数ペア:

[(1, 220121769), (3, 73373923), (7, 31445967), (21, 10481989), (37, 5949237), (49, 4492281), (111, 1983079), (147, 1497427), (259, 849891), (777, 283297), (1813, 121413), (5439, 40471)]