18407981

素因数分解:

${\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:380

約数の個数: 16

約数和(自身を含む): 20020224

約数和(自身を除く): 1612243

約数列:

[1, 23, 37, 97, 223, 851, 2231, 3589, 5129, 8251, 21631, 82547, 189773, 497513, 800347, 18407981]

約数ペア:

[(1, 18407981), (23, 800347), (37, 497513), (97, 189773), (223, 82547), (851, 21631), (2231, 8251), (3589, 5129)]