21691966

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{10459}}^1$

素因数の和:10539

約数の個数: 16

約数和(自身を含む): 35020080

約数和(自身を除く): 13328114

約数列:

[1, 2, 17, 34, 61, 122, 1037, 2074, 10459, 20918, 177803, 355606, 637999, 1275998, 10845983, 21691966]

約数ペア:

[(1, 21691966), (2, 10845983), (17, 1275998), (34, 637999), (61, 355606), (122, 177803), (1037, 20918), (2074, 10459)]