18657826

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{13903}}^1$

素因数の和:13977

約数の個数: 16

約数和(自身を含む): 31033728

約数和(自身を除く): 12375902

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 13903, 27806, 152933, 305866, 848083, 1696166, 9328913, 18657826]

約数ペア:

[(1, 18657826), (2, 9328913), (11, 1696166), (22, 848083), (61, 305866), (122, 152933), (671, 27806), (1342, 13903)]