20854845

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42131}}^1$

素因数の和:42153

約数の個数: 24

約数和(自身を含む): 39435552

約数和(自身を除く): 18580707

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 42131, 126393, 210655, 379179, 463441, 631965, 1390323, 1895895, 2317205, 4170969, 6951615, 20854845]

約数ペア:

[(1, 20854845), (3, 6951615), (5, 4170969), (9, 2317205), (11, 1895895), (15, 1390323), (33, 631965), (45, 463441), (55, 379179), (99, 210655), (165, 126393), (495, 42131)]