20786878

素因数分解:

$2^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{4513}}^1$

素因数の和:4576

約数の個数: 24

約数和(自身を含む): 37050912

約数和(自身を除く): 16264034

約数列:

[1, 2, 7, 14, 47, 49, 94, 98, 329, 658, 2303, 4513, 4606, 9026, 31591, 63182, 212111, 221137, 424222, 442274, 1484777, 2969554, 10393439, 20786878]

約数ペア:

[(1, 20786878), (2, 10393439), (7, 2969554), (14, 1484777), (47, 442274), (49, 424222), (94, 221137), (98, 212111), (329, 63182), (658, 31591), (2303, 9026), (4513, 4606)]