18995109

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{15331}}^1$

素因数の和:15400

約数の個数: 16

約数和(自身を含む): 29437440

約数和(自身を除く): 10442331

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 15331, 45993, 107317, 321951, 904529, 2713587, 6331703, 18995109]

約数ペア:

[(1, 18995109), (3, 6331703), (7, 2713587), (21, 904529), (59, 321951), (177, 107317), (413, 45993), (1239, 15331)]