21830229

素因数分解:

$3^4\times {\mathrm{181}}^1\times {\mathrm{1489}}^1$

素因数の和:1682

約数の個数: 20

約数和(自身を含む): 32812780

約数和(自身を除く): 10982551

約数列:

[1, 3, 9, 27, 81, 181, 543, 1489, 1629, 4467, 4887, 13401, 14661, 40203, 120609, 269509, 808527, 2425581, 7276743, 21830229]

約数ペア:

[(1, 21830229), (3, 7276743), (9, 2425581), (27, 808527), (81, 269509), (181, 120609), (543, 40203), (1489, 14661), (1629, 13401), (4467, 4887)]