21333585

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15629}}^1$

素因数の和:15657

約数の個数: 32

約数和(自身を含む): 42013440

約数和(自身を除く): 20679855

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15629, 46887, 78145, 109403, 203177, 234435, 328209, 547015, 609531, 1015885, 1422239, 1641045, 3047655, 4266717, 7111195, 21333585]

約数ペア:

[(1, 21333585), (3, 7111195), (5, 4266717), (7, 3047655), (13, 1641045), (15, 1422239), (21, 1015885), (35, 609531), (39, 547015), (65, 328209), (91, 234435), (105, 203177), (195, 109403), (273, 78145), (455, 46887), (1365, 15629)]