21753675

素因数分解:

$3^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{887}}^1$

素因数の和:1012

約数の個数: 36

約数和(自身を含む): 39365040

約数和(自身を除く): 17611365

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 109, 225, 327, 545, 887, 981, 1635, 2661, 2725, 4435, 4905, 7983, 8175, 13305, 22175, 24525, 39915, 66525, 96683, 199575, 290049, 483415, 870147, 1450245, 2417075, 4350735, 7251225, 21753675]

約数ペア:

[(1, 21753675), (3, 7251225), (5, 4350735), (9, 2417075), (15, 1450245), (25, 870147), (45, 483415), (75, 290049), (109, 199575), (225, 96683), (327, 66525), (545, 39915), (887, 24525), (981, 22175), (1635, 13305), (2661, 8175), (2725, 7983), (4435, 4905)]