18618404

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{443}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 39782400

約数和(自身を除く): 21163996

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 79, 133, 158, 266, 316, 443, 532, 553, 886, 1106, 1501, 1772, 2212, 3002, 3101, 6004, 6202, 8417, 10507, 12404, 16834, 21014, 33668, 34997, 42028, 58919, 69994, 117838, 139988, 235676, 244979, 489958, 664943, 979916, 1329886, 2659772, 4654601, 9309202, 18618404]

約数ペア:

[(1, 18618404), (2, 9309202), (4, 4654601), (7, 2659772), (14, 1329886), (19, 979916), (28, 664943), (38, 489958), (76, 244979), (79, 235676), (133, 139988), (158, 117838), (266, 69994), (316, 58919), (443, 42028), (532, 34997), (553, 33668), (886, 21014), (1106, 16834), (1501, 12404), (1772, 10507), (2212, 8417), (3002, 6202), (3101, 6004)]