20513464

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{7103}}^1$

素因数の和:7147

約数の個数: 24

約数和(自身を含む): 40599360

約数和(自身を除く): 20085896

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 361, 722, 1444, 2888, 7103, 14206, 28412, 56824, 134957, 269914, 539828, 1079656, 2564183, 5128366, 10256732, 20513464]

約数ペア:

[(1, 20513464), (2, 10256732), (4, 5128366), (8, 2564183), (19, 1079656), (38, 539828), (76, 269914), (152, 134957), (361, 56824), (722, 28412), (1444, 14206), (2888, 7103)]