72405431

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{20981}}^1$

素因数の和:21034

約数の個数: 16

約数和(自身を含む): 90642240

約数和(自身を除く): 18236809

約数列:

[1, 7, 17, 29, 119, 203, 493, 3451, 20981, 146867, 356677, 608449, 2496739, 4259143, 10343633, 72405431]

約数ペア:

[(1, 72405431), (7, 10343633), (17, 4259143), (29, 2496739), (119, 608449), (203, 356677), (493, 146867), (3451, 20981)]