21183513

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 11475687

約数列:

[1, 3, 13, 17, 39, 51, 89, 221, 267, 359, 663, 1077, 1157, 1513, 3471, 4539, 4667, 6103, 14001, 18309, 19669, 31951, 59007, 79339, 95853, 238017, 415363, 543167, 1246089, 1629501, 7061171, 21183513]

約数ペア:

[(1, 21183513), (3, 7061171), (13, 1629501), (17, 1246089), (39, 543167), (51, 415363), (89, 238017), (221, 95853), (267, 79339), (359, 59007), (663, 31951), (1077, 19669), (1157, 18309), (1513, 14001), (3471, 6103), (4539, 4667)]