21968120

素因数分解:

$2^3\times 5^1\times {\mathrm{549203}}^1$

素因数の和:549214

約数の個数: 16

約数和(自身を含む): 49428360

約数和(自身を除く): 27460240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 549203, 1098406, 2196812, 2746015, 4393624, 5492030, 10984060, 21968120]

約数ペア:

[(1, 21968120), (2, 10984060), (4, 5492030), (5, 4393624), (8, 2746015), (10, 2196812), (20, 1098406), (40, 549203)]