21495764

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{2503}}^1$

素因数の和:2639

約数の個数: 24

約数和(自身を含む): 39963840

約数和(自身を除く): 18468076

約数列:

[1, 2, 4, 19, 38, 76, 113, 226, 452, 2147, 2503, 4294, 5006, 8588, 10012, 47557, 95114, 190228, 282839, 565678, 1131356, 5373941, 10747882, 21495764]

約数ペア:

[(1, 21495764), (2, 10747882), (4, 5373941), (19, 1131356), (38, 565678), (76, 282839), (113, 190228), (226, 95114), (452, 47557), (2147, 10012), (2503, 8588), (4294, 5006)]