20904123

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{1427}}^1$

素因数の和:1706

約数の個数: 16

約数和(自身を含む): 29473920

約数和(自身を除く): 8569797

約数列:

[1, 3, 19, 57, 257, 771, 1427, 4281, 4883, 14649, 27113, 81339, 366739, 1100217, 6968041, 20904123]

約数ペア:

[(1, 20904123), (3, 6968041), (19, 1100217), (57, 366739), (257, 81339), (771, 27113), (1427, 14649), (4281, 4883)]