218841245

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1997}}^1$

素因数の和:2141

約数の個数: 32

約数和(自身を含む): 313030656

約数和(自身を除く): 94189411

約数列:

[1, 5, 7, 31, 35, 101, 155, 217, 505, 707, 1085, 1997, 3131, 3535, 9985, 13979, 15655, 21917, 61907, 69895, 109585, 201697, 309535, 433349, 1008485, 1411879, 2166745, 6252607, 7059395, 31263035, 43768249, 218841245]

約数ペア:

[(1, 218841245), (5, 43768249), (7, 31263035), (31, 7059395), (35, 6252607), (101, 2166745), (155, 1411879), (217, 1008485), (505, 433349), (707, 309535), (1085, 201697), (1997, 109585), (3131, 69895), (3535, 61907), (9985, 21917), (13979, 15655)]