21168710

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51631}}^1$

素因数の和:51679

約数の個数: 16

約数和(自身を含む): 39033792

約数和(自身を除く): 17865082

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 51631, 103262, 258155, 516310, 2116871, 4233742, 10584355, 21168710]

約数ペア:

[(1, 21168710), (2, 10584355), (5, 4233742), (10, 2116871), (41, 516310), (82, 258155), (205, 103262), (410, 51631)]