21421348

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{839}}^1$

素因数の和:1347

約数の個数: 24

約数和(自身を含む): 40501440

約数和(自身を除く): 19080092

約数列:

[1, 2, 4, 13, 26, 52, 491, 839, 982, 1678, 1964, 3356, 6383, 10907, 12766, 21814, 25532, 43628, 411949, 823898, 1647796, 5355337, 10710674, 21421348]

約数ペア:

[(1, 21421348), (2, 10710674), (4, 5355337), (13, 1647796), (26, 823898), (52, 411949), (491, 43628), (839, 25532), (982, 21814), (1678, 12766), (1964, 10907), (3356, 6383)]