21135233

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1831}}^1$

素因数の和:1952

約数の個数: 16

約数和(自身を含む): 25853184

約数和(自身を除く): 4717951

約数列:

[1, 7, 17, 97, 119, 679, 1649, 1831, 11543, 12817, 31127, 177607, 217889, 1243249, 3019319, 21135233]

約数ペア:

[(1, 21135233), (7, 3019319), (17, 1243249), (97, 217889), (119, 177607), (679, 31127), (1649, 12817), (1831, 11543)]