191121

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{479}}^1$

素因数の和:508

約数の個数: 16

約数和(自身を含む): 307200

約数和(自身を除く): 116079

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 479, 1437, 3353, 9101, 10059, 27303, 63707, 191121]

約数ペア:

[(1, 191121), (3, 63707), (7, 27303), (19, 10059), (21, 9101), (57, 3353), (133, 1437), (399, 479)]