21119906

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{719}}^1\times {\mathrm{773}}^1$

素因数の和:1513

約数の個数: 16

約数和(自身を含む): 33436800

約数和(自身を除く): 12316894

約数列:

[1, 2, 19, 38, 719, 773, 1438, 1546, 13661, 14687, 27322, 29374, 555787, 1111574, 10559953, 21119906]

約数ペア:

[(1, 21119906), (2, 10559953), (19, 1111574), (38, 555787), (719, 29374), (773, 27322), (1438, 14687), (1546, 13661)]