20858805

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42139}}^1$

素因数の和:42161

約数の個数: 24

約数和(自身を含む): 39443040

約数和(自身を除く): 18584235

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 42139, 126417, 210695, 379251, 463529, 632085, 1390587, 1896255, 2317645, 4171761, 6952935, 20858805]

約数ペア:

[(1, 20858805), (3, 6952935), (5, 4171761), (9, 2317645), (11, 1896255), (15, 1390587), (33, 632085), (45, 463529), (55, 379251), (99, 210695), (165, 126417), (495, 42139)]