21687766

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{5581}}^1$

素因数の和:5679

約数の個数: 16

約数和(自身を含む): 34161840

約数和(自身を除く): 12474074

約数列:

[1, 2, 29, 58, 67, 134, 1943, 3886, 5581, 11162, 161849, 323698, 373927, 747854, 10843883, 21687766]

約数ペア:

[(1, 21687766), (2, 10843883), (29, 747854), (58, 373927), (67, 323698), (134, 161849), (1943, 11162), (3886, 5581)]