18520695

素因数分解:

$3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4243}}^1$

素因数の和:4351

約数の個数: 24

約数和(自身を含む): 32441136

約数和(自身を除く): 13920441

約数列:

[1, 3, 5, 9, 15, 45, 97, 291, 485, 873, 1455, 4243, 4365, 12729, 21215, 38187, 63645, 190935, 411571, 1234713, 2057855, 3704139, 6173565, 18520695]

約数ペア:

[(1, 18520695), (3, 6173565), (5, 3704139), (9, 2057855), (15, 1234713), (45, 411571), (97, 190935), (291, 63645), (485, 38187), (873, 21215), (1455, 12729), (4243, 4365)]