18281475

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{2621}}^1$

素因数の和:2668

約数の個数: 36

約数和(自身を含む): 33813312

約数和(自身を除く): 15531837

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 155, 225, 279, 465, 775, 1395, 2325, 2621, 6975, 7863, 13105, 23589, 39315, 65525, 81251, 117945, 196575, 243753, 406255, 589725, 731259, 1218765, 2031275, 3656295, 6093825, 18281475]

約数ペア:

[(1, 18281475), (3, 6093825), (5, 3656295), (9, 2031275), (15, 1218765), (25, 731259), (31, 589725), (45, 406255), (75, 243753), (93, 196575), (155, 117945), (225, 81251), (279, 65525), (465, 39315), (775, 23589), (1395, 13105), (2325, 7863), (2621, 6975)]