21801620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37589}}^1$

素因数の和:37627

約数の個数: 24

約数和(自身を含む): 47363400

約数和(自身を除く): 25561780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 37589, 75178, 150356, 187945, 375890, 751780, 1090081, 2180162, 4360324, 5450405, 10900810, 21801620]

約数ペア:

[(1, 21801620), (2, 10900810), (4, 5450405), (5, 4360324), (10, 2180162), (20, 1090081), (29, 751780), (58, 375890), (116, 187945), (145, 150356), (290, 75178), (580, 37589)]