21457678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{23789}}^1$

素因数の和:23843

約数の個数: 16

約数和(自身を含む): 35970480

約数和(自身を除く): 14512802

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 23789, 47578, 261679, 523358, 975349, 1950698, 10728839, 21457678]

約数ペア:

[(1, 21457678), (2, 10728839), (11, 1950698), (22, 975349), (41, 523358), (82, 261679), (451, 47578), (902, 23789)]