21557854

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1\times {\mathrm{709}}^1$

素因数の和:1395

約数の個数: 16

約数和(自身を含む): 33841440

約数和(自身を除く): 12283586

約数列:

[1, 2, 23, 46, 661, 709, 1322, 1418, 15203, 16307, 30406, 32614, 468649, 937298, 10778927, 21557854]

約数ペア:

[(1, 21557854), (2, 10778927), (23, 937298), (46, 468649), (661, 32614), (709, 30406), (1322, 16307), (1418, 15203)]