21659259

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{13103}}^1$

素因数の和:13154

約数の個数: 16

約数和(自身を含む): 31449600

約数和(自身を除く): 9790341

約数列:

[1, 3, 19, 29, 57, 87, 551, 1653, 13103, 39309, 248957, 379987, 746871, 1139961, 7219753, 21659259]

約数ペア:

[(1, 21659259), (3, 7219753), (19, 1139961), (29, 746871), (57, 379987), (87, 248957), (551, 39309), (1653, 13103)]