28657688

素因数分解:

$2^3\times {\mathrm{41}}^2\times {\mathrm{2131}}^1$

素因数の和:2219

約数の個数: 24

約数和(自身を含む): 55101540

約数和(自身を除く): 26443852

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 1681, 2131, 3362, 4262, 6724, 8524, 13448, 17048, 87371, 174742, 349484, 698968, 3582211, 7164422, 14328844, 28657688]

約数ペア:

[(1, 28657688), (2, 14328844), (4, 7164422), (8, 3582211), (41, 698968), (82, 349484), (164, 174742), (328, 87371), (1681, 17048), (2131, 13448), (3362, 8524), (4262, 6724)]