21771449

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{761}}^1$

素因数の和:896

約数の個数: 16

約数和(自身を含む): 25700736

約数和(自身を除く): 3929287

約数列:

[1, 7, 61, 67, 427, 469, 761, 4087, 5327, 28609, 46421, 50987, 324947, 356909, 3110207, 21771449]

約数ペア:

[(1, 21771449), (7, 3110207), (61, 356909), (67, 324947), (427, 50987), (469, 46421), (761, 28609), (4087, 5327)]