21891578

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{587}}^1\times {\mathrm{643}}^1$

素因数の和:1261

約数の個数: 16

約数和(自身を含む): 34080480

約数和(自身を除く): 12188902

約数列:

[1, 2, 29, 58, 587, 643, 1174, 1286, 17023, 18647, 34046, 37294, 377441, 754882, 10945789, 21891578]

約数ペア:

[(1, 21891578), (2, 10945789), (29, 754882), (58, 377441), (587, 37294), (643, 34046), (1174, 18647), (1286, 17023)]