20979453

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{1249}}^1$

素因数の和:1772

約数の個数: 16

約数和(自身を含む): 30600000

約数和(自身を除く): 9620547

約数列:

[1, 3, 11, 33, 509, 1249, 1527, 3747, 5599, 13739, 16797, 41217, 635741, 1907223, 6993151, 20979453]

約数ペア:

[(1, 20979453), (3, 6993151), (11, 1907223), (33, 635741), (509, 41217), (1249, 16797), (1527, 13739), (3747, 5599)]