7881057

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{653}}^1$

素因数の和:814

約数の個数: 20

約数和(自身を含む): 11870100

約数和(自身を除く): 3989043

約数列:

[1, 3, 9, 27, 81, 149, 447, 653, 1341, 1959, 4023, 5877, 12069, 17631, 52893, 97297, 291891, 875673, 2627019, 7881057]

約数ペア:

[(1, 7881057), (3, 2627019), (9, 875673), (27, 291891), (81, 97297), (149, 52893), (447, 17631), (653, 12069), (1341, 5877), (1959, 4023)]