20999154

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{853}}^1$

素因数の和:1242

約数の個数: 32

約数和(自身を含む): 45993024

約数和(自身を除く): 24993870

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 373, 746, 853, 1119, 1706, 2238, 2559, 4103, 5118, 8206, 9383, 12309, 18766, 24618, 28149, 56298, 318169, 636338, 954507, 1909014, 3499859, 6999718, 10499577, 20999154]

約数ペア:

[(1, 20999154), (2, 10499577), (3, 6999718), (6, 3499859), (11, 1909014), (22, 954507), (33, 636338), (66, 318169), (373, 56298), (746, 28149), (853, 24618), (1119, 18766), (1706, 12309), (2238, 9383), (2559, 8206), (4103, 5118)]