21964510

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2749}}^1$

素因数の和:2820

約数の個数: 32

約数和(自身を含む): 42768000

約数和(自身を除く): 20803490

約数列:

[1, 2, 5, 10, 17, 34, 47, 85, 94, 170, 235, 470, 799, 1598, 2749, 3995, 5498, 7990, 13745, 27490, 46733, 93466, 129203, 233665, 258406, 467330, 646015, 1292030, 2196451, 4392902, 10982255, 21964510]

約数ペア:

[(1, 21964510), (2, 10982255), (5, 4392902), (10, 2196451), (17, 1292030), (34, 646015), (47, 467330), (85, 258406), (94, 233665), (170, 129203), (235, 93466), (470, 46733), (799, 27490), (1598, 13745), (2749, 7990), (3995, 5498)]