20347515

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3253}}^1$

素因数の和:3403

約数の個数: 24

約数和(自身を含む): 35533680

約数和(自身を除く): 15186165

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 3253, 6255, 9759, 16265, 29277, 48795, 146385, 452167, 1356501, 2260835, 4069503, 6782505, 20347515]

約数ペア:

[(1, 20347515), (3, 6782505), (5, 4069503), (9, 2260835), (15, 1356501), (45, 452167), (139, 146385), (417, 48795), (695, 29277), (1251, 16265), (2085, 9759), (3253, 6255)]