1388395057

素因数分解:

$7^4\times {\mathrm{331}}^1\times {\mathrm{1747}}^1$

素因数の和:2106

約数の個数: 20

約数和(自身を含む): 1625521136

約数和(自身を除く): 237126079

約数列:

[1, 7, 49, 331, 343, 1747, 2317, 2401, 12229, 16219, 85603, 113533, 578257, 599221, 794731, 4047799, 4194547, 28334593, 198342151, 1388395057]

約数ペア:

[(1, 1388395057), (7, 198342151), (49, 28334593), (331, 4194547), (343, 4047799), (1747, 794731), (2317, 599221), (2401, 578257), (12229, 113533), (16219, 85603)]