18718337

素因数分解:

${\mathrm{11}}^2\times {\mathrm{37}}^2\times {\mathrm{113}}^1$

素因数の和:209

約数の個数: 18

約数和(自身を含む): 21332934

約数和(自身を除く): 2614597

約数列:

[1, 11, 37, 113, 121, 407, 1243, 1369, 4181, 4477, 13673, 15059, 45991, 154697, 165649, 505901, 1701667, 18718337]

約数ペア:

[(1, 18718337), (11, 1701667), (37, 505901), (113, 165649), (121, 154697), (407, 45991), (1243, 15059), (1369, 13673), (4181, 4477)]