19118921

素因数分解:

${\mathrm{19}}^2\times {\mathrm{211}}^1\times {\mathrm{251}}^1$

素因数の和:500

約数の個数: 12

約数和(自身を含む): 20354544

約数和(自身を除く): 1235623

約数列:

[1, 19, 211, 251, 361, 4009, 4769, 52961, 76171, 90611, 1006259, 19118921]

約数ペア:

[(1, 19118921), (19, 1006259), (211, 90611), (251, 76171), (361, 52961), (4009, 4769)]