13207509

素因数分解:

$3^3\times 7^2\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 23256000

約数和(自身を除く): 10048491

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 67, 147, 149, 189, 201, 441, 447, 469, 603, 1043, 1323, 1341, 1407, 1809, 3129, 3283, 4023, 4221, 7301, 9387, 9849, 9983, 12663, 21903, 28161, 29547, 29949, 65709, 69881, 88641, 89847, 197127, 209643, 269541, 489167, 628929, 1467501, 1886787, 4402503, 13207509]

約数ペア:

[(1, 13207509), (3, 4402503), (7, 1886787), (9, 1467501), (21, 628929), (27, 489167), (49, 269541), (63, 209643), (67, 197127), (147, 89847), (149, 88641), (189, 69881), (201, 65709), (441, 29949), (447, 29547), (469, 28161), (603, 21903), (1043, 12663), (1323, 9983), (1341, 9849), (1407, 9387), (1809, 7301), (3129, 4221), (3283, 4023)]