21379732

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:460

約数の個数: 36

約数和(自身を含む): 41530048

約数和(自身を除く): 20150316

約数列:

[1, 2, 4, 11, 22, 44, 121, 163, 242, 271, 326, 484, 542, 652, 1084, 1793, 2981, 3586, 5962, 7172, 11924, 19723, 32791, 39446, 44173, 65582, 78892, 88346, 131164, 176692, 485903, 971806, 1943612, 5344933, 10689866, 21379732]

約数ペア:

[(1, 21379732), (2, 10689866), (4, 5344933), (11, 1943612), (22, 971806), (44, 485903), (121, 176692), (163, 131164), (242, 88346), (271, 78892), (326, 65582), (484, 44173), (542, 39446), (652, 32791), (1084, 19723), (1793, 11924), (2981, 7172), (3586, 5962)]