18980277

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1607}}^1$

素因数の和:1768

約数の個数: 16

約数和(自身を含む): 26345472

約数和(自身を除く): 7365195

約数列:

[1, 3, 31, 93, 127, 381, 1607, 3937, 4821, 11811, 49817, 149451, 204089, 612267, 6326759, 18980277]

約数ペア:

[(1, 18980277), (3, 6326759), (31, 612267), (93, 204089), (127, 149451), (381, 49817), (1607, 11811), (3937, 4821)]