20724639

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1067

約数の個数: 24

約数和(自身を含む): 30682512

約数和(自身を除く): 9957873

約数列:

[1, 3, 13, 39, 41, 123, 169, 507, 533, 997, 1599, 2991, 6929, 12961, 20787, 38883, 40877, 122631, 168493, 505479, 531401, 1594203, 6908213, 20724639]

約数ペア:

[(1, 20724639), (3, 6908213), (13, 1594203), (39, 531401), (41, 505479), (123, 168493), (169, 122631), (507, 40877), (533, 38883), (997, 20787), (1599, 12961), (2991, 6929)]