19992663

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{14519}}^1$

素因数の和:14548

約数の個数: 20

約数和(自身を含む): 31624560

約数和(自身を除く): 11631897

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 14519, 43557, 130671, 246823, 392013, 740469, 1176039, 2221407, 6664221, 19992663]

約数ペア:

[(1, 19992663), (3, 6664221), (9, 2221407), (17, 1176039), (27, 740469), (51, 392013), (81, 246823), (153, 130671), (459, 43557), (1377, 14519)]