21029774

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:280

約数の個数: 32

約数和(自身を含む): 34338816

約数和(自身を除く): 13309042

約数列:

[1, 2, 23, 46, 47, 71, 94, 137, 142, 274, 1081, 1633, 2162, 3151, 3266, 3337, 6302, 6439, 6674, 9727, 12878, 19454, 76751, 148097, 153502, 223721, 296194, 447442, 457169, 914338, 10514887, 21029774]

約数ペア:

[(1, 21029774), (2, 10514887), (23, 914338), (46, 457169), (47, 447442), (71, 296194), (94, 223721), (137, 153502), (142, 148097), (274, 76751), (1081, 19454), (1633, 12878), (2162, 9727), (3151, 6674), (3266, 6439), (3337, 6302)]