21694856

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{159521}}^1$

素因数の和:159544

約数の個数: 16

約数和(自身を含む): 43070940

約数和(自身を除く): 21376084

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 159521, 319042, 638084, 1276168, 2711857, 5423714, 10847428, 21694856]

約数ペア:

[(1, 21694856), (2, 10847428), (4, 5423714), (8, 2711857), (17, 1276168), (34, 638084), (68, 319042), (136, 159521)]