20815856

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{24547}}^1$

素因数の和:24608

約数の個数: 20

約数和(自身を含む): 41093352

約数和(自身を除く): 20277496

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 24547, 49094, 98188, 196376, 392752, 1300991, 2601982, 5203964, 10407928, 20815856]

約数ペア:

[(1, 20815856), (2, 10407928), (4, 5203964), (8, 2601982), (16, 1300991), (53, 392752), (106, 196376), (212, 98188), (424, 49094), (848, 24547)]