21969849

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{2087}}^1$

素因数の和:2141

約数の個数: 24

約数和(自身を含む): 33324480

約数和(自身を除く): 11354631

約数列:

[1, 3, 11, 29, 33, 87, 121, 319, 363, 957, 2087, 3509, 6261, 10527, 22957, 60523, 68871, 181569, 252527, 665753, 757581, 1997259, 7323283, 21969849]

約数ペア:

[(1, 21969849), (3, 7323283), (11, 1997259), (29, 757581), (33, 665753), (87, 252527), (121, 181569), (319, 68871), (363, 60523), (957, 22957), (2087, 10527), (3509, 6261)]