20137558635

素因数分解:

$3^4\times 5^1\times {\mathrm{49722367}}^1$

素因数の和:49722384

約数の個数: 20

約数和(自身を含む): 36098439168

約数和(自身を除く): 15960880533

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49722367, 149167101, 248611835, 447501303, 745835505, 1342503909, 2237506515, 4027511727, 6712519545, 20137558635]

約数ペア:

[(1, 20137558635), (3, 6712519545), (5, 4027511727), (9, 2237506515), (15, 1342503909), (27, 745835505), (45, 447501303), (81, 248611835), (135, 149167101), (405, 49722367)]