18784311

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{829}}^1$

素因数の和:935

約数の個数: 32

約数和(自身を含む): 31234560

約数和(自身を除く): 12450249

約数列:

[1, 3, 7, 13, 21, 39, 83, 91, 249, 273, 581, 829, 1079, 1743, 2487, 3237, 5803, 7553, 10777, 17409, 22659, 32331, 68807, 75439, 206421, 226317, 481649, 894491, 1444947, 2683473, 6261437, 18784311]

約数ペア:

[(1, 18784311), (3, 6261437), (7, 2683473), (13, 1444947), (21, 894491), (39, 481649), (83, 226317), (91, 206421), (249, 75439), (273, 68807), (581, 32331), (829, 22659), (1079, 17409), (1743, 10777), (2487, 7553), (3237, 5803)]