20729943

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3343}}^1$

素因数の和:3415

約数の個数: 24

約数和(自身を含む): 32864832

約数和(自身を除く): 12134889

約数列:

[1, 3, 9, 13, 39, 53, 117, 159, 477, 689, 2067, 3343, 6201, 10029, 30087, 43459, 130377, 177179, 391131, 531537, 1594611, 2303327, 6909981, 20729943]

約数ペア:

[(1, 20729943), (3, 6909981), (9, 2303327), (13, 1594611), (39, 531537), (53, 391131), (117, 177179), (159, 130377), (477, 43459), (689, 30087), (2067, 10029), (3343, 6201)]