20016519

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{9491}}^1$

素因数の和:9550

約数の個数: 16

約数和(自身を含む): 28855680

約数和(自身を除く): 8839161

約数列:

[1, 3, 19, 37, 57, 111, 703, 2109, 9491, 28473, 180329, 351167, 540987, 1053501, 6672173, 20016519]

約数ペア:

[(1, 20016519), (3, 6672173), (19, 1053501), (37, 540987), (57, 351167), (111, 180329), (703, 28473), (2109, 9491)]