18978045

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{40813}}^1$

素因数の和:40852

約数の個数: 16

約数和(自身を含む): 31345152

約数和(自身を除く): 12367107

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 40813, 122439, 204065, 612195, 1265203, 3795609, 6326015, 18978045]

約数ペア:

[(1, 18978045), (3, 6326015), (5, 3795609), (15, 1265203), (31, 612195), (93, 204065), (155, 122439), (465, 40813)]