21641272

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{701}}^1$

素因数の和:951

約数の個数: 32

約数和(自身を含む): 43215120

約数和(自身を除く): 21573848

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 227, 454, 701, 908, 1402, 1816, 2804, 3859, 5608, 7718, 11917, 15436, 23834, 30872, 47668, 95336, 159127, 318254, 636508, 1273016, 2705159, 5410318, 10820636, 21641272]

約数ペア:

[(1, 21641272), (2, 10820636), (4, 5410318), (8, 2705159), (17, 1273016), (34, 636508), (68, 318254), (136, 159127), (227, 95336), (454, 47668), (701, 30872), (908, 23834), (1402, 15436), (1816, 11917), (2804, 7718), (3859, 5608)]