2021630481

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{639959}}^1$

素因数の和:639987

約数の個数: 24

約数和(自身を含む): 3261236160

約数和(自身を除く): 1239605679

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 639959, 1919877, 5759631, 8319467, 17278893, 24958401, 51836679, 74875203, 155510037, 224625609, 673876827, 2021630481]

約数ペア:

[(1, 2021630481), (3, 673876827), (9, 224625609), (13, 155510037), (27, 74875203), (39, 51836679), (81, 24958401), (117, 17278893), (243, 8319467), (351, 5759631), (1053, 1919877), (3159, 639959)]