20869678

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1\times {\mathrm{641}}^1$

素因数の和:939

約数の個数: 16

約数和(自身を含む): 31925376

約数和(自身を除く): 11055698

約数列:

[1, 2, 73, 146, 223, 446, 641, 1282, 16279, 32558, 46793, 93586, 142943, 285886, 10434839, 20869678]

約数ペア:

[(1, 20869678), (2, 10434839), (73, 285886), (146, 142943), (223, 93586), (446, 46793), (641, 32558), (1282, 16279)]