21459958

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{173}}^1\times {\mathrm{367}}^1$

素因数の和:568

約数の個数: 24

約数和(自身を含む): 35153568

約数和(自身を除く): 13693610

約数列:

[1, 2, 13, 26, 169, 173, 338, 346, 367, 734, 2249, 4498, 4771, 9542, 29237, 58474, 62023, 63491, 124046, 126982, 825383, 1650766, 10729979, 21459958]

約数ペア:

[(1, 21459958), (2, 10729979), (13, 1650766), (26, 825383), (169, 126982), (173, 124046), (338, 63491), (346, 62023), (367, 58474), (734, 29237), (2249, 9542), (4498, 4771)]