18021771

素因数分解:

$3^4\times {\mathrm{271}}^1\times {\mathrm{821}}^1$

素因数の和:1104

約数の個数: 20

約数和(自身を含む): 27053664

約数和(自身を除く): 9031893

約数列:

[1, 3, 9, 27, 81, 271, 813, 821, 2439, 2463, 7317, 7389, 21951, 22167, 66501, 222491, 667473, 2002419, 6007257, 18021771]

約数ペア:

[(1, 18021771), (3, 6007257), (9, 2002419), (27, 667473), (81, 222491), (271, 66501), (813, 22167), (821, 21951), (2439, 7389), (2463, 7317)]