81789071

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{1471}}^1$

素因数の和:1551

約数の個数: 24

約数和(自身を含む): 103440384

約数和(自身を除く): 21651313

約数列:

[1, 7, 13, 47, 91, 169, 329, 611, 1183, 1471, 4277, 7943, 10297, 19123, 55601, 69137, 133861, 248599, 483959, 898781, 1740193, 6291467, 11684153, 81789071]

約数ペア:

[(1, 81789071), (7, 11684153), (13, 6291467), (47, 1740193), (91, 898781), (169, 483959), (329, 248599), (611, 133861), (1183, 69137), (1471, 55601), (4277, 19123), (7943, 10297)]