90781887

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{254291}}^1$

素因数の和:254318

約数の個数: 16

約数和(自身を含む): 146472192

約数和(自身を除く): 55690305

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 254291, 762873, 1780037, 4322947, 5340111, 12968841, 30260629, 90781887]

約数ペア:

[(1, 90781887), (3, 30260629), (7, 12968841), (17, 5340111), (21, 4322947), (51, 1780037), (119, 762873), (357, 254291)]