87418009

素因数分解:

$7^4\times {\mathrm{23}}^1\times {\mathrm{1583}}^1$

素因数の和:1634

約数の個数: 20

約数和(自身を含む): 106482816

約数和(自身を除く): 19064807

約数列:

[1, 7, 23, 49, 161, 343, 1127, 1583, 2401, 7889, 11081, 36409, 55223, 77567, 254863, 542969, 1784041, 3800783, 12488287, 87418009]

約数ペア:

[(1, 87418009), (7, 12488287), (23, 3800783), (49, 1784041), (161, 542969), (343, 254863), (1127, 77567), (1583, 55223), (2401, 36409), (7889, 11081)]