18271535

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{443}}^1$

素因数の和:634

約数の個数: 16

約数和(自身を含む): 22473504

約数和(自身を除く): 4201969

約数列:

[1, 5, 73, 113, 365, 443, 565, 2215, 8249, 32339, 41245, 50059, 161695, 250295, 3654307, 18271535]

約数ペア:

[(1, 18271535), (5, 3654307), (73, 250295), (113, 161695), (365, 50059), (443, 41245), (565, 32339), (2215, 8249)]