25349709

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 43765056

約数和(自身を除く): 18415347

約数列:

[1, 3, 7, 11, 21, 33, 49, 61, 77, 147, 183, 231, 257, 427, 539, 671, 771, 1281, 1617, 1799, 2013, 2827, 2989, 4697, 5397, 8481, 8967, 12593, 14091, 15677, 19789, 32879, 37779, 47031, 59367, 98637, 109739, 138523, 172447, 329217, 415569, 517341, 768173, 1207129, 2304519, 3621387, 8449903, 25349709]

約数ペア:

[(1, 25349709), (3, 8449903), (7, 3621387), (11, 2304519), (21, 1207129), (33, 768173), (49, 517341), (61, 415569), (77, 329217), (147, 172447), (183, 138523), (231, 109739), (257, 98637), (427, 59367), (539, 47031), (671, 37779), (771, 32879), (1281, 19789), (1617, 15677), (1799, 14091), (2013, 12593), (2827, 8967), (2989, 8481), (4697, 5397)]