19721306

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{227}}^1\times {\mathrm{359}}^1$

素因数の和:610

約数の個数: 24

約数和(自身を含む): 32749920

約数和(自身を除く): 13028614

約数列:

[1, 2, 11, 22, 121, 227, 242, 359, 454, 718, 2497, 3949, 4994, 7898, 27467, 43439, 54934, 81493, 86878, 162986, 896423, 1792846, 9860653, 19721306]

約数ペア:

[(1, 19721306), (2, 9860653), (11, 1792846), (22, 896423), (121, 162986), (227, 86878), (242, 81493), (359, 54934), (454, 43439), (718, 27467), (2497, 7898), (3949, 4994)]