21704681

素因数分解:

${\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:344

約数の個数: 16

約数和(自身を含む): 23347200

約数和(自身を除く): 1642519

約数列:

[1, 31, 37, 127, 149, 1147, 3937, 4619, 4699, 5513, 18923, 145669, 170903, 586613, 700151, 21704681]

約数ペア:

[(1, 21704681), (31, 700151), (37, 586613), (127, 170903), (149, 145669), (1147, 18923), (3937, 5513), (4619, 4699)]