20655156

素因数分解:

$2^2\times 3^1\times {\mathrm{1303}}^1\times {\mathrm{1321}}^1$

素因数の和:2631

約数の個数: 24

約数和(自身を含む): 48268864

約数和(自身を除く): 27613708

約数列:

[1, 2, 3, 4, 6, 12, 1303, 1321, 2606, 2642, 3909, 3963, 5212, 5284, 7818, 7926, 15636, 15852, 1721263, 3442526, 5163789, 6885052, 10327578, 20655156]

約数ペア:

[(1, 20655156), (2, 10327578), (3, 6885052), (4, 5163789), (6, 3442526), (12, 1721263), (1303, 15852), (1321, 15636), (2606, 7926), (2642, 7818), (3909, 5284), (3963, 5212)]