396891

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 661440

約数和(自身を除く): 264549

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 211, 627, 633, 1881, 1899, 2321, 4009, 6963, 12027, 20889, 36081, 44099, 132297, 396891]

約数ペア:

[(1, 396891), (3, 132297), (9, 44099), (11, 36081), (19, 20889), (33, 12027), (57, 6963), (99, 4009), (171, 2321), (209, 1899), (211, 1881), (627, 633)]