1389892511

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{220373}}^1$

素因数の和:220450

約数の個数: 16

約数和(自身を含む): 1713628224

約数和(自身を除く): 323735713

約数列:

[1, 7, 17, 53, 119, 371, 901, 6307, 220373, 1542611, 3746341, 11679769, 26224387, 81758383, 198556073, 1389892511]

約数ペア:

[(1, 1389892511), (7, 198556073), (17, 81758383), (53, 26224387), (119, 11679769), (371, 3746341), (901, 1542611), (6307, 220373)]