21000500380

素因数分解:

$2^2\times 5^1\times {\mathrm{3373}}^1\times {\mathrm{311303}}^1$

素因数の和:314685

約数の個数: 24

約数和(自身を含む): 44114267232

約数和(自身を除く): 23113766852

約数列:

[1, 2, 4, 5, 10, 20, 3373, 6746, 13492, 16865, 33730, 67460, 311303, 622606, 1245212, 1556515, 3113030, 6226060, 1050025019, 2100050038, 4200100076, 5250125095, 10500250190, 21000500380]

約数ペア:

[(1, 21000500380), (2, 10500250190), (4, 5250125095), (5, 4200100076), (10, 2100050038), (20, 1050025019), (3373, 6226060), (6746, 3113030), (13492, 1556515), (16865, 1245212), (33730, 622606), (67460, 311303)]