21368444

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{1123}}^1$

素因数の和:1265

約数の個数: 24

約数和(自身を含む): 38521728

約数和(自身を除く): 17153284

約数列:

[1, 2, 4, 67, 71, 134, 142, 268, 284, 1123, 2246, 4492, 4757, 9514, 19028, 75241, 79733, 150482, 159466, 300964, 318932, 5342111, 10684222, 21368444]

約数ペア:

[(1, 21368444), (2, 10684222), (4, 5342111), (67, 318932), (71, 300964), (134, 159466), (142, 150482), (268, 79733), (284, 75241), (1123, 19028), (2246, 9514), (4492, 4757)]