18271967

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:446

約数の個数: 16

約数和(自身を含む): 21369600

約数和(自身を除く): 3097633

約数列:

[1, 7, 89, 139, 211, 623, 973, 1477, 12371, 18779, 29329, 86597, 131453, 205303, 2610281, 18271967]

約数ペア:

[(1, 18271967), (7, 2610281), (89, 205303), (139, 131453), (211, 86597), (623, 29329), (973, 18779), (1477, 12371)]