18831879

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:572

約数の個数: 32

約数和(自身を含む): 30700800

約数和(自身を除く): 11868921

約数列:

[1, 3, 9, 11, 27, 33, 99, 163, 297, 389, 489, 1167, 1467, 1793, 3501, 4279, 4401, 5379, 10503, 12837, 16137, 38511, 48411, 63407, 115533, 190221, 570663, 697477, 1711989, 2092431, 6277293, 18831879]

約数ペア:

[(1, 18831879), (3, 6277293), (9, 2092431), (11, 1711989), (27, 697477), (33, 570663), (99, 190221), (163, 115533), (297, 63407), (389, 48411), (489, 38511), (1167, 16137), (1467, 12837), (1793, 10503), (3501, 5379), (4279, 4401)]