20381031

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{421}}^1$

素因数の和:604

約数の個数: 32

約数和(自身を含む): 33219840

約数和(自身を除く): 12838809

約数列:

[1, 3, 9, 11, 27, 33, 99, 163, 297, 421, 489, 1263, 1467, 1793, 3789, 4401, 4631, 5379, 11367, 13893, 16137, 41679, 48411, 68623, 125037, 205869, 617607, 754853, 1852821, 2264559, 6793677, 20381031]

約数ペア:

[(1, 20381031), (3, 6793677), (9, 2264559), (11, 1852821), (27, 754853), (33, 617607), (99, 205869), (163, 125037), (297, 68623), (421, 48411), (489, 41679), (1263, 16137), (1467, 13893), (1793, 11367), (3789, 5379), (4401, 4631)]