56721999

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 81861120

約数和(自身を除く): 25139121

約数列:

[1, 3, 29, 37, 67, 87, 111, 201, 263, 789, 1073, 1943, 2479, 3219, 5829, 7437, 7627, 9731, 17621, 22881, 29193, 52863, 71891, 215673, 282199, 511009, 651977, 846597, 1533027, 1955931, 18907333, 56721999]

約数ペア:

[(1, 56721999), (3, 18907333), (29, 1955931), (37, 1533027), (67, 846597), (87, 651977), (111, 511009), (201, 282199), (263, 215673), (789, 71891), (1073, 52863), (1943, 29193), (2479, 22881), (3219, 17621), (5829, 9731), (7437, 7627)]