21233109

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{997}}^1$

素因数の和:1260

約数の個数: 16

約数和(自身を含む): 29381120

約数和(自身を除く): 8148011

約数列:

[1, 3, 31, 93, 229, 687, 997, 2991, 7099, 21297, 30907, 92721, 228313, 684939, 7077703, 21233109]

約数ペア:

[(1, 21233109), (3, 7077703), (31, 684939), (93, 228313), (229, 92721), (687, 30907), (997, 21297), (2991, 7099)]