81289481

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3449}}^1$

素因数の和:3513

約数の個数: 24

約数和(自身を含む): 104617800

約数和(自身を除く): 23328319

約数列:

[1, 7, 13, 37, 49, 91, 259, 481, 637, 1813, 3367, 3449, 23569, 24143, 44837, 127613, 169001, 313859, 893291, 1658969, 2197013, 6253037, 11612783, 81289481]

約数ペア:

[(1, 81289481), (7, 11612783), (13, 6253037), (37, 2197013), (49, 1658969), (91, 893291), (259, 313859), (481, 169001), (637, 127613), (1813, 44837), (3367, 24143), (3449, 23569)]