208078371

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{2437}}^1$

素因数の和:2675

約数の個数: 24

約数和(自身を含む): 308065680

約数和(自身を除く): 99987309

約数列:

[1, 3, 9, 53, 159, 179, 477, 537, 1611, 2437, 7311, 9487, 21933, 28461, 85383, 129161, 387483, 436223, 1162449, 1308669, 3926007, 23119819, 69359457, 208078371]

約数ペア:

[(1, 208078371), (3, 69359457), (9, 23119819), (53, 3926007), (159, 1308669), (179, 1162449), (477, 436223), (537, 387483), (1611, 129161), (2437, 85383), (7311, 28461), (9487, 21933)]