668879757

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{816703}}^1$

素因数の和:816729

約数の個数: 24

約数和(自身を含む): 1189121024

約数和(自身を除く): 520241267

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 816703, 2450109, 5716921, 7350327, 10617139, 17150763, 31851417, 51452289, 74319973, 95554251, 222959919, 668879757]

約数ペア:

[(1, 668879757), (3, 222959919), (7, 95554251), (9, 74319973), (13, 51452289), (21, 31851417), (39, 17150763), (63, 10617139), (91, 7350327), (117, 5716921), (273, 2450109), (819, 816703)]