21357152

素因数分解:

$2^5\times {\mathrm{89}}^1\times {\mathrm{7499}}^1$

素因数の和:7598

約数の個数: 24

約数和(自身を含む): 42525000

約数和(自身を除く): 21167848

約数列:

[1, 2, 4, 8, 16, 32, 89, 178, 356, 712, 1424, 2848, 7499, 14998, 29996, 59992, 119984, 239968, 667411, 1334822, 2669644, 5339288, 10678576, 21357152]

約数ペア:

[(1, 21357152), (2, 10678576), (4, 5339288), (8, 2669644), (16, 1334822), (32, 667411), (89, 239968), (178, 119984), (356, 59992), (712, 29996), (1424, 14998), (2848, 7499)]