21741871

素因数分解:

${\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:414

約数の個数: 16

約数和(自身を含む): 23708160

約数和(自身を除く): 1966289

約数列:

[1, 19, 47, 97, 251, 893, 1843, 4559, 4769, 11797, 24347, 86621, 224143, 462593, 1144309, 21741871]

約数ペア:

[(1, 21741871), (19, 1144309), (47, 462593), (97, 224143), (251, 86621), (893, 24347), (1843, 11797), (4559, 4769)]