21311697

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{3733}}^1$

素因数の和:3920

約数の個数: 16

約数和(自身を含む): 31186368

約数和(自身を除く): 9874671

約数列:

[1, 3, 11, 33, 173, 519, 1903, 3733, 5709, 11199, 41063, 123189, 645809, 1937427, 7103899, 21311697]

約数ペア:

[(1, 21311697), (3, 7103899), (11, 1937427), (33, 645809), (173, 123189), (519, 41063), (1903, 11199), (3733, 5709)]