20745417

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2897}}^1$

素因数の和:2949

約数の個数: 32

約数和(自身を含む): 35610624

約数和(自身を除く): 14865207

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 217, 231, 341, 651, 1023, 2387, 2897, 7161, 8691, 20279, 31867, 60837, 89807, 95601, 223069, 269421, 628649, 669207, 987877, 1885947, 2963631, 6915139, 20745417]

約数ペア:

[(1, 20745417), (3, 6915139), (7, 2963631), (11, 1885947), (21, 987877), (31, 669207), (33, 628649), (77, 269421), (93, 223069), (217, 95601), (231, 89807), (341, 60837), (651, 31867), (1023, 20279), (2387, 8691), (2897, 7161)]