191381421

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{2347}}^1$

素因数の和:2721

約数の個数: 32

約数和(自身を含む): 319177728

約数和(自身を除く): 127796307

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 353, 1059, 2347, 2471, 3883, 7041, 7413, 11649, 16429, 25817, 27181, 49287, 77451, 81543, 180719, 542157, 828491, 2485473, 5799437, 9113401, 17398311, 27340203, 63793807, 191381421]

約数ペア:

[(1, 191381421), (3, 63793807), (7, 27340203), (11, 17398311), (21, 9113401), (33, 5799437), (77, 2485473), (231, 828491), (353, 542157), (1059, 180719), (2347, 81543), (2471, 77451), (3883, 49287), (7041, 27181), (7413, 25817), (11649, 16429)]