21753743

素因数分解:

${\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:215

約数の個数: 24

約数和(自身を含む): 25350864

約数和(自身を除く): 3597121

約数列:

[1, 11, 37, 43, 113, 121, 407, 473, 1243, 1591, 4181, 4477, 4859, 5203, 13673, 17501, 45991, 53449, 179783, 192511, 505901, 587939, 1977613, 21753743]

約数ペア:

[(1, 21753743), (11, 1977613), (37, 587939), (43, 505901), (113, 192511), (121, 179783), (407, 53449), (473, 45991), (1243, 17501), (1591, 13673), (4181, 5203), (4477, 4859)]