20720848

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{44657}}^1$

素因数の和:44694

約数の個数: 20

約数和(自身を含む): 41531940

約数和(自身を除く): 20811092

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 44657, 89314, 178628, 357256, 714512, 1295053, 2590106, 5180212, 10360424, 20720848]

約数ペア:

[(1, 20720848), (2, 10360424), (4, 5180212), (8, 2590106), (16, 1295053), (29, 714512), (58, 357256), (116, 178628), (232, 89314), (464, 44657)]