18217713

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 26956800

約数和(自身を除く): 8739087

約数列:

[1, 3, 19, 29, 57, 87, 103, 107, 309, 321, 551, 1653, 1957, 2033, 2987, 3103, 5871, 6099, 8961, 9309, 11021, 33063, 56753, 58957, 170259, 176871, 209399, 319609, 628197, 958827, 6072571, 18217713]

約数ペア:

[(1, 18217713), (3, 6072571), (19, 958827), (29, 628197), (57, 319609), (87, 209399), (103, 176871), (107, 170259), (309, 58957), (321, 56753), (551, 33063), (1653, 11021), (1957, 9309), (2033, 8961), (2987, 6099), (3103, 5871)]