21188500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1367}}^1$

素因数の和:1417

約数の個数: 48

約数和(自身を含む): 47803392

約数和(自身を除く): 26614892

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 775, 1367, 1550, 2734, 3100, 3875, 5468, 6835, 7750, 13670, 15500, 27340, 34175, 42377, 68350, 84754, 136700, 169508, 170875, 211885, 341750, 423770, 683500, 847540, 1059425, 2118850, 4237700, 5297125, 10594250, 21188500]

約数ペア:

[(1, 21188500), (2, 10594250), (4, 5297125), (5, 4237700), (10, 2118850), (20, 1059425), (25, 847540), (31, 683500), (50, 423770), (62, 341750), (100, 211885), (124, 170875), (125, 169508), (155, 136700), (250, 84754), (310, 68350), (500, 42377), (620, 34175), (775, 27340), (1367, 15500), (1550, 13670), (2734, 7750), (3100, 6835), (3875, 5468)]