21612688

素因数分解:

$2^4\times {\mathrm{499}}^1\times {\mathrm{2707}}^1$

素因数の和:3214

約数の個数: 20

約数和(自身を含む): 41974000

約数和(自身を除く): 20361312

約数列:

[1, 2, 4, 8, 16, 499, 998, 1996, 2707, 3992, 5414, 7984, 10828, 21656, 43312, 1350793, 2701586, 5403172, 10806344, 21612688]

約数ペア:

[(1, 21612688), (2, 10806344), (4, 5403172), (8, 2701586), (16, 1350793), (499, 43312), (998, 21656), (1996, 10828), (2707, 7984), (3992, 5414)]