1108289

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:680

約数の個数: 16

約数和(自身を含む): 1438080

約数和(自身を除く): 329791

約数列:

[1, 7, 13, 19, 91, 133, 247, 641, 1729, 4487, 8333, 12179, 58331, 85253, 158327, 1108289]

約数ペア:

[(1, 1108289), (7, 158327), (13, 85253), (19, 58331), (91, 12179), (133, 8333), (247, 4487), (641, 1729)]