42507387

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{27947}}^1$

素因数の和:27979

約数の個数: 18

約数和(自身を含む): 66488292

約数和(自身を除く): 23980905

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 27947, 83841, 251523, 363311, 1089933, 3269799, 4723043, 14169129, 42507387]

約数ペア:

[(1, 42507387), (3, 14169129), (9, 4723043), (13, 3269799), (39, 1089933), (117, 363311), (169, 251523), (507, 83841), (1521, 27947)]