21207518

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1\times {\mathrm{1913}}^1$

素因数の和:2179

約数の個数: 16

約数和(自身を含む): 33349536

約数和(自身を除く): 12142018

約数列:

[1, 2, 23, 46, 241, 482, 1913, 3826, 5543, 11086, 43999, 87998, 461033, 922066, 10603759, 21207518]

約数ペア:

[(1, 21207518), (2, 10603759), (23, 922066), (46, 461033), (241, 87998), (482, 43999), (1913, 11086), (3826, 5543)]