21244820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{36629}}^1$

素因数の和:36667

約数の個数: 24

約数和(自身を含む): 46153800

約数和(自身を除く): 24908980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 36629, 73258, 146516, 183145, 366290, 732580, 1062241, 2124482, 4248964, 5311205, 10622410, 21244820]

約数ペア:

[(1, 21244820), (2, 10622410), (4, 5311205), (5, 4248964), (10, 2124482), (20, 1062241), (29, 732580), (58, 366290), (116, 183145), (145, 146516), (290, 73258), (580, 36629)]