20512385145

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9302669}}^1$

素因数の和:9302694

約数の個数: 36

約数和(自身を含む): 41359670820

約数和(自身を除く): 20847285675

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9302669, 27908007, 46513345, 65118683, 83724021, 139540035, 195356049, 325593415, 418620105, 455830781, 586068147, 976780245, 1367492343, 2279153905, 2930340735, 4102477029, 6837461715, 20512385145]

約数ペア:

[(1, 20512385145), (3, 6837461715), (5, 4102477029), (7, 2930340735), (9, 2279153905), (15, 1367492343), (21, 976780245), (35, 586068147), (45, 455830781), (49, 418620105), (63, 325593415), (105, 195356049), (147, 139540035), (245, 83724021), (315, 65118683), (441, 46513345), (735, 27908007), (2205, 9302669)]