18878431

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1361}}^1$

素因数の和:1482

約数の個数: 16

約数和(自身を含む): 22423968

約数和(自身を除く): 3545537

約数列:

[1, 11, 13, 97, 143, 1067, 1261, 1361, 13871, 14971, 17693, 132017, 194623, 1452187, 1716221, 18878431]

約数ペア:

[(1, 18878431), (11, 1716221), (13, 1452187), (97, 194623), (143, 132017), (1067, 17693), (1261, 14971), (1361, 13871)]