990001103

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{639949}}^1$

素因数の和:639986

約数の個数: 16

約数和(自身を含む): 1290139200

約数和(自身を除く): 300138097

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 639949, 4479643, 8319337, 10879133, 58235359, 76153931, 141428729, 990001103]

約数ペア:

[(1, 990001103), (7, 141428729), (13, 76153931), (17, 58235359), (91, 10879133), (119, 8319337), (221, 4479643), (1547, 639949)]