21200434

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{641}}^1\times {\mathrm{719}}^1$

素因数の和:1385

約数の個数: 16

約数和(自身を含む): 33281280

約数和(自身を除く): 12080846

約数列:

[1, 2, 23, 46, 641, 719, 1282, 1438, 14743, 16537, 29486, 33074, 460879, 921758, 10600217, 21200434]

約数ペア:

[(1, 21200434), (2, 10600217), (23, 921758), (46, 460879), (641, 33074), (719, 29486), (1282, 16537), (1438, 14743)]