85661709

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{214691}}^1$

素因数の和:214720

約数の個数: 16

約数和(自身を含む): 137402880

約数和(自身を除く): 51741171

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 214691, 644073, 1502837, 4079129, 4508511, 12237387, 28553903, 85661709]

約数ペア:

[(1, 85661709), (3, 28553903), (7, 12237387), (19, 4508511), (21, 4079129), (57, 1502837), (133, 644073), (399, 214691)]