19903013

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{4241}}^1$

素因数の和:4292

約数の個数: 12

約数和(自身を含む): 22626828

約数和(自身を除く): 2723815

約数列:

[1, 13, 19, 247, 361, 4241, 4693, 55133, 80579, 1047527, 1531001, 19903013]

約数ペア:

[(1, 19903013), (13, 1531001), (19, 1047527), (247, 80579), (361, 55133), (4241, 4693)]