12128571

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 22014720

約数和(自身を除く): 9886149

約数列:

[1, 3, 7, 9, 13, 21, 39, 59, 63, 91, 117, 177, 251, 273, 413, 531, 753, 767, 819, 1239, 1757, 2259, 2301, 3263, 3717, 5271, 5369, 6903, 9789, 14809, 15813, 16107, 22841, 29367, 44427, 48321, 68523, 103663, 133281, 192517, 205569, 310989, 577551, 932967, 1347619, 1732653, 4042857, 12128571]

約数ペア:

[(1, 12128571), (3, 4042857), (7, 1732653), (9, 1347619), (13, 932967), (21, 577551), (39, 310989), (59, 205569), (63, 192517), (91, 133281), (117, 103663), (177, 68523), (251, 48321), (273, 44427), (413, 29367), (531, 22841), (753, 16107), (767, 15813), (819, 14809), (1239, 9789), (1757, 6903), (2259, 5369), (2301, 5271), (3263, 3717)]