18928971

素因数分解:

$3^5\times {\mathrm{61}}^1\times {\mathrm{1277}}^1$

素因数の和:1353

約数の個数: 24

約数和(自身を含む): 28841904

約数和(自身を除く): 9912933

約数列:

[1, 3, 9, 27, 61, 81, 183, 243, 549, 1277, 1647, 3831, 4941, 11493, 14823, 34479, 77897, 103437, 233691, 310311, 701073, 2103219, 6309657, 18928971]

約数ペア:

[(1, 18928971), (3, 6309657), (9, 2103219), (27, 701073), (61, 310311), (81, 233691), (183, 103437), (243, 77897), (549, 34479), (1277, 14823), (1647, 11493), (3831, 4941)]