21462440

素因数分解:

$2^3\times 5^1\times {\mathrm{536561}}^1$

素因数の和:536572

約数の個数: 16

約数和(自身を含む): 48290580

約数和(自身を除く): 26828140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 536561, 1073122, 2146244, 2682805, 4292488, 5365610, 10731220, 21462440]

約数ペア:

[(1, 21462440), (2, 10731220), (4, 5365610), (5, 4292488), (8, 2682805), (10, 2146244), (20, 1073122), (40, 536561)]