668868291

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{816689}}^1$

素因数の和:816715

約数の個数: 24

約数和(自身を含む): 1189100640

約数和(自身を除く): 520232349

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 816689, 2450067, 5716823, 7350201, 10616957, 17150469, 31850871, 51451407, 74318699, 95552613, 222956097, 668868291]

約数ペア:

[(1, 668868291), (3, 222956097), (7, 95552613), (9, 74318699), (13, 51451407), (21, 31850871), (39, 17150469), (63, 10616957), (91, 7350201), (117, 5716823), (273, 2450067), (819, 816689)]