19906629

素因数分解:

$3^1\times {\mathrm{37}}^3\times {\mathrm{131}}^1$

素因数の和:245

約数の個数: 16

約数和(自身を含む): 27487680

約数和(自身を除く): 7581051

約数列:

[1, 3, 37, 111, 131, 393, 1369, 4107, 4847, 14541, 50653, 151959, 179339, 538017, 6635543, 19906629]

約数ペア:

[(1, 19906629), (3, 6635543), (37, 538017), (111, 179339), (131, 151959), (393, 50653), (1369, 14541), (4107, 4847)]