21853510

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{433}}^1$

素因数の和:557

約数の個数: 48

約数和(自身を含む): 46309536

約数和(自身を除く): 24456026

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 103, 206, 245, 433, 490, 515, 721, 866, 1030, 1442, 2165, 3031, 3605, 4330, 5047, 6062, 7210, 10094, 15155, 21217, 25235, 30310, 42434, 44599, 50470, 89198, 106085, 212170, 222995, 312193, 445990, 624386, 1560965, 2185351, 3121930, 4370702, 10926755, 21853510]

約数ペア:

[(1, 21853510), (2, 10926755), (5, 4370702), (7, 3121930), (10, 2185351), (14, 1560965), (35, 624386), (49, 445990), (70, 312193), (98, 222995), (103, 212170), (206, 106085), (245, 89198), (433, 50470), (490, 44599), (515, 42434), (721, 30310), (866, 25235), (1030, 21217), (1442, 15155), (2165, 10094), (3031, 7210), (3605, 6062), (4330, 5047)]