20394561

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{7823}}^1$

素因数の和:7916

約数の個数: 16

約数和(自身を含む): 30044160

約数和(自身を除く): 9649599

約数列:

[1, 3, 11, 33, 79, 237, 869, 2607, 7823, 23469, 86053, 258159, 618017, 1854051, 6798187, 20394561]

約数ペア:

[(1, 20394561), (3, 6798187), (11, 1854051), (33, 618017), (79, 258159), (237, 86053), (869, 23469), (2607, 7823)]