21185247

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21863}}^1$

素因数の和:21902

約数の個数: 16

約数和(自身を含む): 31484160

約数和(自身を除く): 10298913

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 21863, 65589, 371671, 415397, 1115013, 1246191, 7061749, 21185247]

約数ペア:

[(1, 21185247), (3, 7061749), (17, 1246191), (19, 1115013), (51, 415397), (57, 371671), (323, 65589), (969, 21863)]