21699425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4153}}^1$

素因数の和:4193

約数の個数: 24

約数和(自身を含む): 30905760

約数和(自身を除く): 9206335

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 4153, 5225, 20765, 45683, 78907, 103825, 228415, 394535, 867977, 1142075, 1972675, 4339885, 21699425]

約数ペア:

[(1, 21699425), (5, 4339885), (11, 1972675), (19, 1142075), (25, 867977), (55, 394535), (95, 228415), (209, 103825), (275, 78907), (475, 45683), (1045, 20765), (4153, 5225)]