20803455

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3529}}^1$

素因数の和:3671

約数の個数: 24

約数和(自身を含む): 36344880

約数和(自身を除く): 15541425

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 3529, 5895, 10587, 17645, 31761, 52935, 158805, 462299, 1386897, 2311495, 4160691, 6934485, 20803455]

約数ペア:

[(1, 20803455), (3, 6934485), (5, 4160691), (9, 2311495), (15, 1386897), (45, 462299), (131, 158805), (393, 52935), (655, 31761), (1179, 17645), (1965, 10587), (3529, 5895)]