20415885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1531}}^1$

素因数の和:1673

約数の個数: 32

約数和(自身を含む): 37650432

約数和(自身を除く): 17234547

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 127, 381, 635, 889, 1531, 1905, 2667, 4445, 4593, 7655, 10717, 13335, 22965, 32151, 53585, 160755, 194437, 583311, 972185, 1361059, 2916555, 4083177, 6805295, 20415885]

約数ペア:

[(1, 20415885), (3, 6805295), (5, 4083177), (7, 2916555), (15, 1361059), (21, 972185), (35, 583311), (105, 194437), (127, 160755), (381, 53585), (635, 32151), (889, 22965), (1531, 13335), (1905, 10717), (2667, 7655), (4445, 4593)]