19747281

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{887}}^1$

素因数の和:1112

約数の個数: 16

約数和(自身を含む): 27151488

約数和(自身を除く): 7404207

約数列:

[1, 3, 41, 123, 181, 543, 887, 2661, 7421, 22263, 36367, 109101, 160547, 481641, 6582427, 19747281]

約数ペア:

[(1, 19747281), (3, 6582427), (41, 481641), (123, 160547), (181, 109101), (543, 36367), (887, 22263), (2661, 7421)]