260888943

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{2089}}^1$

素因数の和:2431

約数の個数: 32

約数和(自身を含む): 420006400

約数和(自身を除く): 159117457

約数列:

[1, 3, 7, 19, 21, 57, 133, 313, 399, 939, 2089, 2191, 5947, 6267, 6573, 14623, 17841, 39691, 41629, 43869, 119073, 124887, 277837, 653857, 833511, 1961571, 4576999, 12423283, 13730997, 37269849, 86962981, 260888943]

約数ペア:

[(1, 260888943), (3, 86962981), (7, 37269849), (19, 13730997), (21, 12423283), (57, 4576999), (133, 1961571), (313, 833511), (399, 653857), (939, 277837), (2089, 124887), (2191, 119073), (5947, 43869), (6267, 41629), (6573, 39691), (14623, 17841)]