21010400

素因数分解:

$2^5\times 5^2\times {\mathrm{26263}}^1$

素因数の和:26283

約数の個数: 36

約数和(自身を含む): 51293592

約数和(自身を除く): 30283192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26263, 52526, 105052, 131315, 210104, 262630, 420208, 525260, 656575, 840416, 1050520, 1313150, 2101040, 2626300, 4202080, 5252600, 10505200, 21010400]

約数ペア:

[(1, 21010400), (2, 10505200), (4, 5252600), (5, 4202080), (8, 2626300), (10, 2101040), (16, 1313150), (20, 1050520), (25, 840416), (32, 656575), (40, 525260), (50, 420208), (80, 262630), (100, 210104), (160, 131315), (200, 105052), (400, 52526), (800, 26263)]