71720883

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{68111}}^1$

素因数の和:68136

約数の個数: 20

約数和(自身を含む): 115381728

約数和(自身を除く): 43660845

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 68111, 204333, 612999, 885443, 1838997, 2656329, 5516991, 7968987, 23906961, 71720883]

約数ペア:

[(1, 71720883), (3, 23906961), (9, 7968987), (13, 5516991), (27, 2656329), (39, 1838997), (81, 885443), (117, 612999), (351, 204333), (1053, 68111)]