20112372981

素因数分解:

$3^6\times {\mathrm{149}}^1\times {\mathrm{185161}}^1$

素因数の和:185328

約数の個数: 28

約数和(自身を含む): 30357309900

約数和(自身を除く): 10244936919

約数列:

[1, 3, 9, 27, 81, 149, 243, 447, 729, 1341, 4023, 12069, 36207, 108621, 185161, 555483, 1666449, 4999347, 14998041, 27588989, 44994123, 82766967, 134982369, 248300901, 744902703, 2234708109, 6704124327, 20112372981]

約数ペア:

[(1, 20112372981), (3, 6704124327), (9, 2234708109), (27, 744902703), (81, 248300901), (149, 134982369), (243, 82766967), (447, 44994123), (729, 27588989), (1341, 14998041), (4023, 4999347), (12069, 1666449), (36207, 555483), (108621, 185161)]