20690716

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{701}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 37267776

約数和(自身を除く): 16577060

約数列:

[1, 2, 4, 47, 94, 157, 188, 314, 628, 701, 1402, 2804, 7379, 14758, 29516, 32947, 65894, 110057, 131788, 220114, 440228, 5172679, 10345358, 20690716]

約数ペア:

[(1, 20690716), (2, 10345358), (4, 5172679), (47, 440228), (94, 220114), (157, 131788), (188, 110057), (314, 65894), (628, 32947), (701, 29516), (1402, 14758), (2804, 7379)]