520895921

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{116819}}^1$

素因数の和:116853

約数の個数: 16

約数和(自身を含む): 654192000

約数和(自身を除く): 133296079

約数列:

[1, 7, 13, 49, 91, 343, 637, 4459, 116819, 817733, 1518647, 5724131, 10630529, 40068917, 74413703, 520895921]

約数ペア:

[(1, 520895921), (7, 74413703), (13, 40068917), (49, 10630529), (91, 5724131), (343, 1518647), (637, 817733), (4459, 116819)]