20991510

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{233239}}^1$

素因数の和:233252

約数の個数: 24

約数和(自身を含む): 54578160

約数和(自身を除く): 33586650

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 233239, 466478, 699717, 1166195, 1399434, 2099151, 2332390, 3498585, 4198302, 6997170, 10495755, 20991510]

約数ペア:

[(1, 20991510), (2, 10495755), (3, 6997170), (5, 4198302), (6, 3498585), (9, 2332390), (10, 2099151), (15, 1399434), (18, 1166195), (30, 699717), (45, 466478), (90, 233239)]