19743885

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1229}}^1$

素因数の和:1267

約数の個数: 64

約数和(自身を含む): 42508800

約数和(自身を除く): 22764915

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 51, 63, 85, 105, 119, 135, 153, 189, 255, 315, 357, 459, 595, 765, 945, 1071, 1229, 1785, 2295, 3213, 3687, 5355, 6145, 8603, 11061, 16065, 18435, 20893, 25809, 33183, 43015, 55305, 62679, 77427, 104465, 129045, 146251, 165915, 188037, 232281, 313395, 387135, 438753, 564111, 731255, 940185, 1161405, 1316259, 2193765, 2820555, 3948777, 6581295, 19743885]

約数ペア:

[(1, 19743885), (3, 6581295), (5, 3948777), (7, 2820555), (9, 2193765), (15, 1316259), (17, 1161405), (21, 940185), (27, 731255), (35, 564111), (45, 438753), (51, 387135), (63, 313395), (85, 232281), (105, 188037), (119, 165915), (135, 146251), (153, 129045), (189, 104465), (255, 77427), (315, 62679), (357, 55305), (459, 43015), (595, 33183), (765, 25809), (945, 20893), (1071, 18435), (1229, 16065), (1785, 11061), (2295, 8603), (3213, 6145), (3687, 5355)]