21769564

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{419}}^2$

素因数の和:873

約数の個数: 18

約数和(自身を含む): 39419744

約数和(自身を除く): 17650180

約数列:

[1, 2, 4, 31, 62, 124, 419, 838, 1676, 12989, 25978, 51956, 175561, 351122, 702244, 5442391, 10884782, 21769564]

約数ペア:

[(1, 21769564), (2, 10884782), (4, 5442391), (31, 702244), (62, 351122), (124, 175561), (419, 51956), (838, 25978), (1676, 12989)]