20490764

素因数分解:

$2^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{1667}}^1$

素因数の和:2117

約数の個数: 24

約数和(自身を含む): 41099520

約数和(自身を除く): 20608756

約数列:

[1, 2, 4, 7, 14, 28, 439, 878, 1667, 1756, 3073, 3334, 6146, 6668, 11669, 12292, 23338, 46676, 731813, 1463626, 2927252, 5122691, 10245382, 20490764]

約数ペア:

[(1, 20490764), (2, 10245382), (4, 5122691), (7, 2927252), (14, 1463626), (28, 731813), (439, 46676), (878, 23338), (1667, 12292), (1756, 11669), (3073, 6668), (3334, 6146)]