2009940399

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{1078873}}^1$

素因数の和:1078908

約数の個数: 20

約数和(自身を含む): 3133050096

約数和(自身を除く): 1123109697

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 1078873, 3236619, 9709857, 24814079, 29129571, 74442237, 87388713, 223326711, 669980133, 2009940399]

約数ペア:

[(1, 2009940399), (3, 669980133), (9, 223326711), (23, 87388713), (27, 74442237), (69, 29129571), (81, 24814079), (207, 9709857), (621, 3236619), (1863, 1078873)]