18796869

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{389}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 34070400

約数和(自身を除く): 15273531

約数列:

[1, 3, 7, 9, 13, 21, 39, 59, 63, 91, 117, 177, 273, 389, 413, 531, 767, 819, 1167, 1239, 2301, 2723, 3501, 3717, 5057, 5369, 6903, 8169, 15171, 16107, 22951, 24507, 35399, 45513, 48321, 68853, 106197, 160657, 206559, 298363, 318591, 481971, 895089, 1445913, 2088541, 2685267, 6265623, 18796869]

約数ペア:

[(1, 18796869), (3, 6265623), (7, 2685267), (9, 2088541), (13, 1445913), (21, 895089), (39, 481971), (59, 318591), (63, 298363), (91, 206559), (117, 160657), (177, 106197), (273, 68853), (389, 48321), (413, 45513), (531, 35399), (767, 24507), (819, 22951), (1167, 16107), (1239, 15171), (2301, 8169), (2723, 6903), (3501, 5369), (3717, 5057)]