20438308

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{7873}}^1$

素因数の和:7947

約数の個数: 24

約数和(自身を含む): 39684960

約数和(自身を除く): 19246652

約数列:

[1, 2, 4, 11, 22, 44, 59, 118, 236, 649, 1298, 2596, 7873, 15746, 31492, 86603, 173206, 346412, 464507, 929014, 1858028, 5109577, 10219154, 20438308]

約数ペア:

[(1, 20438308), (2, 10219154), (4, 5109577), (11, 1858028), (22, 929014), (44, 464507), (59, 346412), (118, 173206), (236, 86603), (649, 31492), (1298, 15746), (2596, 7873)]