18545186

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{197}}^1\times {\mathrm{389}}^1$

素因数の和:610

約数の個数: 24

約数和(自身を含む): 30810780

約数和(自身を除く): 12265594

約数列:

[1, 2, 11, 22, 121, 197, 242, 389, 394, 778, 2167, 4279, 4334, 8558, 23837, 47069, 47674, 76633, 94138, 153266, 842963, 1685926, 9272593, 18545186]

約数ペア:

[(1, 18545186), (2, 9272593), (11, 1685926), (22, 842963), (121, 153266), (197, 94138), (242, 76633), (389, 47674), (394, 47069), (778, 23837), (2167, 8558), (4279, 4334)]