21453866

素因数分解:

$2^1\times 7^2\times {\mathrm{179}}^1\times {\mathrm{1223}}^1$

素因数の和:1418

約数の個数: 24

約数和(自身を含む): 37674720

約数和(自身を除く): 16220854

約数列:

[1, 2, 7, 14, 49, 98, 179, 358, 1223, 1253, 2446, 2506, 8561, 8771, 17122, 17542, 59927, 119854, 218917, 437834, 1532419, 3064838, 10726933, 21453866]

約数ペア:

[(1, 21453866), (2, 10726933), (7, 3064838), (14, 1532419), (49, 437834), (98, 218917), (179, 119854), (358, 59927), (1223, 17542), (1253, 17122), (2446, 8771), (2506, 8561)]