18938913

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{347}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 30468096

約数和(自身を除く): 11529183

約数列:

[1, 3, 7, 21, 23, 69, 113, 161, 339, 347, 483, 791, 1041, 2373, 2429, 2599, 7287, 7797, 7981, 18193, 23943, 39211, 54579, 55867, 117633, 167601, 274477, 823431, 901853, 2705559, 6312971, 18938913]

約数ペア:

[(1, 18938913), (3, 6312971), (7, 2705559), (21, 901853), (23, 823431), (69, 274477), (113, 167601), (161, 117633), (339, 55867), (347, 54579), (483, 39211), (791, 23943), (1041, 18193), (2373, 7981), (2429, 7797), (2599, 7287)]