28657874

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{449}}^1$

素因数の和:602

約数の個数: 32

約数和(自身を含む): 50803200

約数和(自身を除く): 22145326

約数列:

[1, 2, 7, 14, 47, 94, 97, 194, 329, 449, 658, 679, 898, 1358, 3143, 4559, 6286, 9118, 21103, 31913, 42206, 43553, 63826, 87106, 147721, 295442, 304871, 609742, 2046991, 4093982, 14328937, 28657874]

約数ペア:

[(1, 28657874), (2, 14328937), (7, 4093982), (14, 2046991), (47, 609742), (94, 304871), (97, 295442), (194, 147721), (329, 87106), (449, 63826), (658, 43553), (679, 42206), (898, 31913), (1358, 21103), (3143, 9118), (4559, 6286)]