20471643

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 31449600

約数和(自身を除く): 10977957

約数列:

[1, 3, 9, 27, 59, 71, 177, 181, 213, 531, 543, 639, 1593, 1629, 1917, 4189, 4887, 10679, 12567, 12851, 32037, 37701, 38553, 96111, 113103, 115659, 288333, 346977, 758209, 2274627, 6823881, 20471643]

約数ペア:

[(1, 20471643), (3, 6823881), (9, 2274627), (27, 758209), (59, 346977), (71, 288333), (177, 115659), (181, 113103), (213, 96111), (531, 38553), (543, 37701), (639, 32037), (1593, 12851), (1629, 12567), (1917, 10679), (4189, 4887)]