20879578

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{2861}}^1$

素因数の和:2993

約数の個数: 16

約数和(自身を含む): 32455080

約数和(自身を除く): 11575502

約数列:

[1, 2, 41, 82, 89, 178, 2861, 3649, 5722, 7298, 117301, 234602, 254629, 509258, 10439789, 20879578]

約数ペア:

[(1, 20879578), (2, 10439789), (41, 509258), (82, 254629), (89, 234602), (178, 117301), (2861, 7298), (3649, 5722)]