18165777

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{12911}}^1$

素因数の和:12988

約数の個数: 16

約数和(自身を含む): 28096512

約数和(自身を除く): 9930735

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 12911, 38733, 90377, 271131, 865037, 2595111, 6055259, 18165777]

約数ペア:

[(1, 18165777), (3, 6055259), (7, 2595111), (21, 865037), (67, 271131), (201, 90377), (469, 38733), (1407, 12911)]