21458367

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{7247}}^1$

素因数の和:7307

約数の個数: 24

約数和(自身を含む): 36182016

約数和(自身を除く): 14723649

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 7247, 21741, 50729, 65223, 152187, 340609, 456561, 1021827, 2384263, 3065481, 7152789, 21458367]

約数ペア:

[(1, 21458367), (3, 7152789), (7, 3065481), (9, 2384263), (21, 1021827), (47, 456561), (63, 340609), (141, 152187), (329, 65223), (423, 50729), (987, 21741), (2961, 7247)]