20015379

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1747}}^1$

素因数の和:1839

約数の個数: 24

約数和(自身を含む): 30904640

約数和(自身を除く): 10889261

約数列:

[1, 3, 9, 19, 57, 67, 171, 201, 603, 1273, 1747, 3819, 5241, 11457, 15723, 33193, 99579, 117049, 298737, 351147, 1053441, 2223931, 6671793, 20015379]

約数ペア:

[(1, 20015379), (3, 6671793), (9, 2223931), (19, 1053441), (57, 351147), (67, 298737), (171, 117049), (201, 99579), (603, 33193), (1273, 15723), (1747, 11457), (3819, 5241)]