21917918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{12611}}^1$

素因数の和:12703

約数の個数: 16

約数和(自身を含む): 36322560

約数和(自身を除く): 14404642

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 12611, 25222, 138721, 277442, 996269, 1992538, 10958959, 21917918]

約数ペア:

[(1, 21917918), (2, 10958959), (11, 1992538), (22, 996269), (79, 277442), (158, 138721), (869, 25222), (1738, 12611)]