81980457

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{1373}}^1\times {\mathrm{1531}}^1$

素因数の和:2920

約数の個数: 16

約数和(自身を含む): 117878208

約数和(自身を除く): 35897751

約数列:

[1, 3, 13, 39, 1373, 1531, 4119, 4593, 17849, 19903, 53547, 59709, 2102063, 6306189, 27326819, 81980457]

約数ペア:

[(1, 81980457), (3, 27326819), (13, 6306189), (39, 2102063), (1373, 59709), (1531, 53547), (4119, 19903), (4593, 17849)]