21018774

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{5623}}^1$

素因数の和:5724

約数の個数: 32

約数和(自身を含む): 48591360

約数和(自身を除く): 27572586

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 89, 178, 267, 534, 623, 1246, 1869, 3738, 5623, 11246, 16869, 33738, 39361, 78722, 118083, 236166, 500447, 1000894, 1501341, 3002682, 3503129, 7006258, 10509387, 21018774]

約数ペア:

[(1, 21018774), (2, 10509387), (3, 7006258), (6, 3503129), (7, 3002682), (14, 1501341), (21, 1000894), (42, 500447), (89, 236166), (178, 118083), (267, 78722), (534, 39361), (623, 33738), (1246, 16869), (1869, 11246), (3738, 5623)]