21649540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98407}}^1$

素因数の和:98427

約数の個数: 24

約数和(自身を含む): 49597632

約数和(自身を除く): 27948092

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98407, 196814, 393628, 492035, 984070, 1082477, 1968140, 2164954, 4329908, 5412385, 10824770, 21649540]

約数ペア:

[(1, 21649540), (2, 10824770), (4, 5412385), (5, 4329908), (10, 2164954), (11, 1968140), (20, 1082477), (22, 984070), (44, 492035), (55, 393628), (110, 196814), (220, 98407)]