201421665

素因数分解:

$3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{22721}}^1$

素因数の和:22929

約数の個数: 24

約数和(自身を含む): 350918568

約数和(自身を除く): 149496903

約数列:

[1, 3, 5, 9, 15, 45, 197, 591, 985, 1773, 2955, 8865, 22721, 68163, 113605, 204489, 340815, 1022445, 4476037, 13428111, 22380185, 40284333, 67140555, 201421665]

約数ペア:

[(1, 201421665), (3, 67140555), (5, 40284333), (9, 22380185), (15, 13428111), (45, 4476037), (197, 1022445), (591, 340815), (985, 204489), (1773, 113605), (2955, 68163), (8865, 22721)]