18666495

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13381}}^1$

素因数の和:13423

約数の個数: 24

約数和(自身を含む): 33401472

約数和(自身を除く): 14734977

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 13381, 40143, 66905, 120429, 200715, 414811, 602145, 1244433, 2074055, 3733299, 6222165, 18666495]

約数ペア:

[(1, 18666495), (3, 6222165), (5, 3733299), (9, 2074055), (15, 1244433), (31, 602145), (45, 414811), (93, 200715), (155, 120429), (279, 66905), (465, 40143), (1395, 13381)]