20488995

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26783}}^1$

素因数の和:26811

約数の個数: 24

約数和(自身を含む): 37604736

約数和(自身を除く): 17115741

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 26783, 80349, 133915, 241047, 401745, 455311, 1205235, 1365933, 2276555, 4097799, 6829665, 20488995]

約数ペア:

[(1, 20488995), (3, 6829665), (5, 4097799), (9, 2276555), (15, 1365933), (17, 1205235), (45, 455311), (51, 401745), (85, 241047), (153, 133915), (255, 80349), (765, 26783)]