221585581

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{12161}}^1$

素因数の和:12324

約数の個数: 16

約数和(自身を含む): 268536960

約数和(自身を除く): 46951379

約数列:

[1, 7, 19, 133, 137, 959, 2603, 12161, 18221, 85127, 231059, 1617413, 1666057, 11662399, 31655083, 221585581]

約数ペア:

[(1, 221585581), (7, 31655083), (19, 11662399), (133, 1666057), (137, 1617413), (959, 231059), (2603, 85127), (12161, 18221)]