21497584

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{433}}^1$

素因数の和:577

約数の個数: 40

約数和(自身を含む): 43590960

約数和(自身を除く): 22093376

約数列:

[1, 2, 4, 8, 16, 29, 58, 107, 116, 214, 232, 428, 433, 464, 856, 866, 1712, 1732, 3103, 3464, 6206, 6928, 12412, 12557, 24824, 25114, 46331, 49648, 50228, 92662, 100456, 185324, 200912, 370648, 741296, 1343599, 2687198, 5374396, 10748792, 21497584]

約数ペア:

[(1, 21497584), (2, 10748792), (4, 5374396), (8, 2687198), (16, 1343599), (29, 741296), (58, 370648), (107, 200912), (116, 185324), (214, 100456), (232, 92662), (428, 50228), (433, 49648), (464, 46331), (856, 25114), (866, 24824), (1712, 12557), (1732, 12412), (3103, 6928), (3464, 6206)]