67947815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{33721}}^1$

素因数の和:33770

約数の個数: 16

約数和(自身を含む): 90644736

約数和(自身を除く): 22696921

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 33721, 168605, 438373, 1045351, 2191865, 5226755, 13589563, 67947815]

約数ペア:

[(1, 67947815), (5, 13589563), (13, 5226755), (31, 2191865), (65, 1045351), (155, 438373), (403, 168605), (2015, 33721)]