21365786

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{11257}}^1$

素因数の和:11345

約数の個数: 16

約数和(自身を含む): 34989864

約数和(自身を除く): 13624078

約数列:

[1, 2, 13, 26, 73, 146, 949, 1898, 11257, 22514, 146341, 292682, 821761, 1643522, 10682893, 21365786]

約数ペア:

[(1, 21365786), (2, 10682893), (13, 1643522), (26, 821761), (73, 292682), (146, 146341), (949, 22514), (1898, 11257)]