20191996

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{41719}}^1$

素因数の和:41745

約数の個数: 18

約数和(自身を含む): 38841320

約数和(自身を除く): 18649324

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 41719, 83438, 166876, 458909, 917818, 1835636, 5047999, 10095998, 20191996]

約数ペア:

[(1, 20191996), (2, 10095998), (4, 5047999), (11, 1835636), (22, 917818), (44, 458909), (121, 166876), (242, 83438), (484, 41719)]