20608696

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{431}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19308104

約数列:

[1, 2, 4, 8, 43, 86, 139, 172, 278, 344, 431, 556, 862, 1112, 1724, 3448, 5977, 11954, 18533, 23908, 37066, 47816, 59909, 74132, 119818, 148264, 239636, 479272, 2576087, 5152174, 10304348, 20608696]

約数ペア:

[(1, 20608696), (2, 10304348), (4, 5152174), (8, 2576087), (43, 479272), (86, 239636), (139, 148264), (172, 119818), (278, 74132), (344, 59909), (431, 47816), (556, 37066), (862, 23908), (1112, 18533), (1724, 11954), (3448, 5977)]