21806382

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{1063}}^1$

素因数の和:1344

約数の個数: 32

約数和(自身を含む): 47190528

約数和(自身を除く): 25384146

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 263, 526, 789, 1063, 1578, 2126, 3189, 3419, 6378, 6838, 10257, 13819, 20514, 27638, 41457, 82914, 279569, 559138, 838707, 1677414, 3634397, 7268794, 10903191, 21806382]

約数ペア:

[(1, 21806382), (2, 10903191), (3, 7268794), (6, 3634397), (13, 1677414), (26, 838707), (39, 559138), (78, 279569), (263, 82914), (526, 41457), (789, 27638), (1063, 20514), (1578, 13819), (2126, 10257), (3189, 6838), (3419, 6378)]