20900079

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{20921}}^1$

素因数の和:20967

約数の個数: 16

約数和(自身を含む): 31801440

約数和(自身を除く): 10901361

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 20921, 62763, 188289, 564867, 774077, 2322231, 6966693, 20900079]

約数ペア:

[(1, 20900079), (3, 6966693), (9, 2322231), (27, 774077), (37, 564867), (111, 188289), (333, 62763), (999, 20921)]