19991324

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 38707200

約数和(自身を除く): 18715876

約数列:

[1, 2, 4, 23, 29, 46, 58, 59, 92, 116, 118, 127, 236, 254, 508, 667, 1334, 1357, 1711, 2668, 2714, 2921, 3422, 3683, 5428, 5842, 6844, 7366, 7493, 11684, 14732, 14986, 29972, 39353, 78706, 84709, 157412, 169418, 172339, 217297, 338836, 344678, 434594, 689356, 869188, 4997831, 9995662, 19991324]

約数ペア:

[(1, 19991324), (2, 9995662), (4, 4997831), (23, 869188), (29, 689356), (46, 434594), (58, 344678), (59, 338836), (92, 217297), (116, 172339), (118, 169418), (127, 157412), (236, 84709), (254, 78706), (508, 39353), (667, 29972), (1334, 14986), (1357, 14732), (1711, 11684), (2668, 7493), (2714, 7366), (2921, 6844), (3422, 5842), (3683, 5428)]