21499412

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{25717}}^1$

素因数の和:25751

約数の個数: 24

約数和(自身を含む): 43206240

約数和(自身を除く): 21706828

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 25717, 51434, 102868, 282887, 488623, 565774, 977246, 1131548, 1954492, 5374853, 10749706, 21499412]

約数ペア:

[(1, 21499412), (2, 10749706), (4, 5374853), (11, 1954492), (19, 1131548), (22, 977246), (38, 565774), (44, 488623), (76, 282887), (209, 102868), (418, 51434), (836, 25717)]