17702581

素因数分解:

${\mathrm{13}}^2\times {\mathrm{31}}^2\times {\mathrm{109}}^1$

素因数の和:197

約数の個数: 18

約数和(自身を含む): 19989090

約数和(自身を除く): 2286509

約数列:

[1, 13, 31, 109, 169, 403, 961, 1417, 3379, 5239, 12493, 18421, 43927, 104749, 162409, 571051, 1361737, 17702581]

約数ペア:

[(1, 17702581), (13, 1361737), (31, 571051), (109, 162409), (169, 104749), (403, 43927), (961, 18421), (1417, 12493), (3379, 5239)]