21653260

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14831}}^1$

素因数の和:14913

約数の個数: 24

約数和(自身を含む): 46097856

約数和(自身を除く): 24444596

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14831, 29662, 59324, 74155, 148310, 296620, 1082663, 2165326, 4330652, 5413315, 10826630, 21653260]

約数ペア:

[(1, 21653260), (2, 10826630), (4, 5413315), (5, 4330652), (10, 2165326), (20, 1082663), (73, 296620), (146, 148310), (292, 74155), (365, 59324), (730, 29662), (1460, 14831)]