20261428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{10709}}^1$

素因数の和:10767

約数の個数: 24

約数和(自身を含む): 39584160

約数和(自身を除く): 19322732

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 10709, 21418, 42836, 117799, 235598, 460487, 471196, 920974, 1841948, 5065357, 10130714, 20261428]

約数ペア:

[(1, 20261428), (2, 10130714), (4, 5065357), (11, 1841948), (22, 920974), (43, 471196), (44, 460487), (86, 235598), (172, 117799), (473, 42836), (946, 21418), (1892, 10709)]