20459961

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{727}}^1$

素因数の和:845

約数の個数: 24

約数和(自身を含む): 30663360

約数和(自身を除く): 10203399

約数列:

[1, 3, 9, 53, 59, 159, 177, 477, 531, 727, 2181, 3127, 6543, 9381, 28143, 38531, 42893, 115593, 128679, 346779, 386037, 2273329, 6819987, 20459961]

約数ペア:

[(1, 20459961), (3, 6819987), (9, 2273329), (53, 386037), (59, 346779), (159, 128679), (177, 115593), (477, 42893), (531, 38531), (727, 28143), (2181, 9381), (3127, 6543)]