21090770

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{857}}^1$

素因数の和:994

約数の個数: 32

約数和(自身を含む): 40030848

約数和(自身を除く): 18940078

約数列:

[1, 2, 5, 10, 23, 46, 107, 115, 214, 230, 535, 857, 1070, 1714, 2461, 4285, 4922, 8570, 12305, 19711, 24610, 39422, 91699, 98555, 183398, 197110, 458495, 916990, 2109077, 4218154, 10545385, 21090770]

約数ペア:

[(1, 21090770), (2, 10545385), (5, 4218154), (10, 2109077), (23, 916990), (46, 458495), (107, 197110), (115, 183398), (214, 98555), (230, 91699), (535, 39422), (857, 24610), (1070, 19711), (1714, 12305), (2461, 8570), (4285, 4922)]