21381782

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1\times {\mathrm{1021}}^1$

素因数の和:1343

約数の個数: 16

約数和(自身を含む): 33088272

約数和(自身を除く): 11706490

約数列:

[1, 2, 37, 74, 283, 566, 1021, 2042, 10471, 20942, 37777, 75554, 288943, 577886, 10690891, 21381782]

約数ペア:

[(1, 21381782), (2, 10690891), (37, 577886), (74, 288943), (283, 75554), (566, 37777), (1021, 20942), (2042, 10471)]