80921491

素因数分解:

$7^2\times {\mathrm{109}}^2\times {\mathrm{139}}^1$

素因数の和:371

約数の個数: 18

約数和(自身を含む): 95688180

約数和(自身を除く): 14766689

約数列:

[1, 7, 49, 109, 139, 763, 973, 5341, 6811, 11881, 15151, 83167, 106057, 582169, 742399, 1651459, 11560213, 80921491]

約数ペア:

[(1, 80921491), (7, 11560213), (49, 1651459), (109, 742399), (139, 582169), (763, 106057), (973, 83167), (5341, 15151), (6811, 11881)]