19745451

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 13276629

約数列:

[1, 3, 9, 11, 27, 33, 81, 83, 89, 99, 243, 249, 267, 297, 747, 801, 891, 913, 979, 2241, 2403, 2673, 2739, 2937, 6723, 7209, 7387, 8217, 8811, 20169, 21627, 22161, 24651, 26433, 66483, 73953, 79299, 81257, 199449, 221859, 237897, 243771, 598347, 731313, 1795041, 2193939, 6581817, 19745451]

約数ペア:

[(1, 19745451), (3, 6581817), (9, 2193939), (11, 1795041), (27, 731313), (33, 598347), (81, 243771), (83, 237897), (89, 221859), (99, 199449), (243, 81257), (249, 79299), (267, 73953), (297, 66483), (747, 26433), (801, 24651), (891, 22161), (913, 21627), (979, 20169), (2241, 8811), (2403, 8217), (2673, 7387), (2739, 7209), (2937, 6723)]