21000391700

素因数分解:

$2^2\times 5^2\times {\mathrm{3343}}^1\times {\mathrm{62819}}^1$

素因数の和:66176

約数の個数: 36

約数和(自身を含む): 45585207360

約数和(自身を除く): 24584815660

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 3343, 6686, 13372, 16715, 33430, 62819, 66860, 83575, 125638, 167150, 251276, 314095, 334300, 628190, 1256380, 1570475, 3140950, 6281900, 210003917, 420007834, 840015668, 1050019585, 2100039170, 4200078340, 5250097925, 10500195850, 21000391700]

約数ペア:

[(1, 21000391700), (2, 10500195850), (4, 5250097925), (5, 4200078340), (10, 2100039170), (20, 1050019585), (25, 840015668), (50, 420007834), (100, 210003917), (3343, 6281900), (6686, 3140950), (13372, 1570475), (16715, 1256380), (33430, 628190), (62819, 334300), (66860, 314095), (83575, 251276), (125638, 167150)]