21061540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{36313}}^1$

素因数の和:36351

約数の個数: 24

約数和(自身を含む): 45755640

約数和(自身を除く): 24694100

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 36313, 72626, 145252, 181565, 363130, 726260, 1053077, 2106154, 4212308, 5265385, 10530770, 21061540]

約数ペア:

[(1, 21061540), (2, 10530770), (4, 5265385), (5, 4212308), (10, 2106154), (20, 1053077), (29, 726260), (58, 363130), (116, 181565), (145, 145252), (290, 72626), (580, 36313)]