389957407

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{18307}}^1$

素因数の和:18510

約数の個数: 16

約数和(自身を含む): 474543360

約数和(自身を除く): 84585953

約数列:

[1, 7, 17, 119, 179, 1253, 3043, 18307, 21301, 128149, 311219, 2178533, 3276953, 22938671, 55708201, 389957407]

約数ペア:

[(1, 389957407), (7, 55708201), (17, 22938671), (119, 3276953), (179, 2178533), (1253, 311219), (3043, 128149), (18307, 21301)]