81279359

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{2557}}^1$

素因数の和:2822

約数の個数: 16

約数和(自身を含む): 98227200

約数和(自身を除く): 16947841

約数列:

[1, 7, 19, 133, 239, 1673, 2557, 4541, 17899, 31787, 48583, 340081, 611123, 4277861, 11611337, 81279359]

約数ペア:

[(1, 81279359), (7, 11611337), (19, 4277861), (133, 611123), (239, 340081), (1673, 48583), (2557, 31787), (4541, 17899)]