289149021

素因数分解:

$3^4\times 7^1\times {\mathrm{509963}}^1$

素因数の和:509982

約数の個数: 20

約数和(自身を含む): 493645152

約数和(自身を除く): 204496131

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 509963, 1529889, 3569741, 4589667, 10709223, 13769001, 32127669, 41307003, 96383007, 289149021]

約数ペア:

[(1, 289149021), (3, 96383007), (7, 41307003), (9, 32127669), (21, 13769001), (27, 10709223), (63, 4589667), (81, 3569741), (189, 1529889), (567, 509963)]