16991379

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{60901}}^1$

素因数の和:60938

約数の個数: 12

約数和(自身を含む): 25335232

約数和(自身を除く): 8343853

約数列:

[1, 3, 9, 31, 93, 279, 60901, 182703, 548109, 1887931, 5663793, 16991379]

約数ペア:

[(1, 16991379), (3, 5663793), (9, 1887931), (31, 548109), (93, 182703), (279, 60901)]