28247786

素因数分解:

$2^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 49610880

約数和(自身を除く): 21363094

約数列:

[1, 2, 7, 14, 107, 109, 173, 214, 218, 346, 749, 763, 1211, 1498, 1526, 2422, 11663, 18511, 18857, 23326, 37022, 37714, 81641, 129577, 131999, 163282, 259154, 263998, 2017699, 4035398, 14123893, 28247786]

約数ペア:

[(1, 28247786), (2, 14123893), (7, 4035398), (14, 2017699), (107, 263998), (109, 259154), (173, 163282), (214, 131999), (218, 129577), (346, 81641), (749, 37714), (763, 37022), (1211, 23326), (1498, 18857), (1526, 18511), (2422, 11663)]