278197227

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{133813}}^1$

素因数の和:133840

約数の個数: 32

約数和(自身を含む): 513845760

約数和(自身を除く): 235648533

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 133813, 401439, 936691, 1204317, 1471943, 2810073, 3612951, 4415829, 8430219, 10303601, 13247487, 25290657, 30910803, 39742461, 92732409, 278197227]

約数ペア:

[(1, 278197227), (3, 92732409), (7, 39742461), (9, 30910803), (11, 25290657), (21, 13247487), (27, 10303601), (33, 8430219), (63, 4415829), (77, 3612951), (99, 2810073), (189, 1471943), (231, 1204317), (297, 936691), (693, 401439), (2079, 133813)]