21812696

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{63409}}^1$

素因数の和:63458

約数の個数: 16

約数和(自身を含む): 41850600

約数和(自身を除く): 20037904

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 63409, 126818, 253636, 507272, 2726587, 5453174, 10906348, 21812696]

約数ペア:

[(1, 21812696), (2, 10906348), (4, 5453174), (8, 2726587), (43, 507272), (86, 253636), (172, 126818), (344, 63409)]