28556367

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{2459}}^1$

素因数の和:2555

約数の個数: 24

約数和(自身を含む): 44870400

約数和(自身を除く): 16314033

約数列:

[1, 3, 7, 21, 49, 79, 147, 237, 553, 1659, 2459, 3871, 7377, 11613, 17213, 51639, 120491, 194261, 361473, 582783, 1359827, 4079481, 9518789, 28556367]

約数ペア:

[(1, 28556367), (3, 9518789), (7, 4079481), (21, 1359827), (49, 582783), (79, 361473), (147, 194261), (237, 120491), (553, 51639), (1659, 17213), (2459, 11613), (3871, 7377)]