20676879

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{907}}^1$

素因数の和:1079

約数の個数: 24

約数和(自身を含む): 31870800

約数和(自身を除く): 11193921

約数列:

[1, 3, 9, 17, 51, 149, 153, 447, 907, 1341, 2533, 2721, 7599, 8163, 15419, 22797, 46257, 135143, 138771, 405429, 1216287, 2297431, 6892293, 20676879]

約数ペア:

[(1, 20676879), (3, 6892293), (9, 2297431), (17, 1216287), (51, 405429), (149, 138771), (153, 135143), (447, 46257), (907, 22797), (1341, 15419), (2533, 8163), (2721, 7599)]