20640426

素因数分解:

$2^1\times 3^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{1381}}^1$

素因数の和:1486

約数の個数: 32

約数和(自身を含む): 42985728

約数和(自身を除く): 22345302

約数列:

[1, 2, 3, 6, 47, 53, 94, 106, 141, 159, 282, 318, 1381, 2491, 2762, 4143, 4982, 7473, 8286, 14946, 64907, 73193, 129814, 146386, 194721, 219579, 389442, 439158, 3440071, 6880142, 10320213, 20640426]

約数ペア:

[(1, 20640426), (2, 10320213), (3, 6880142), (6, 3440071), (47, 439158), (53, 389442), (94, 219579), (106, 194721), (141, 146386), (159, 129814), (282, 73193), (318, 64907), (1381, 14946), (2491, 8286), (2762, 7473), (4143, 4982)]