18719766

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{79999}}^1$

素因数の和:80020

約数の個数: 24

約数和(自身を含む): 43680000

約数和(自身を除く): 24960234

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 79999, 159998, 239997, 479994, 719991, 1039987, 1439982, 2079974, 3119961, 6239922, 9359883, 18719766]

約数ペア:

[(1, 18719766), (2, 9359883), (3, 6239922), (6, 3119961), (9, 2079974), (13, 1439982), (18, 1039987), (26, 719991), (39, 479994), (78, 239997), (117, 159998), (234, 79999)]