40391379

素因数分解:

$3^4\times 7^1\times {\mathrm{71237}}^1$

素因数の和:71256

約数の個数: 20

約数和(自身を含む): 68958384

約数和(自身を除く): 28567005

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 71237, 213711, 498659, 641133, 1495977, 1923399, 4487931, 5770197, 13463793, 40391379]

約数ペア:

[(1, 40391379), (3, 13463793), (7, 5770197), (9, 4487931), (21, 1923399), (27, 1495977), (63, 641133), (81, 498659), (189, 213711), (567, 71237)]