28385791

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:331

約数の個数: 24

約数和(自身を含む): 35112960

約数和(自身を除く): 6727169

約数列:

[1, 7, 19, 47, 133, 239, 329, 361, 893, 1673, 2527, 4541, 6251, 11233, 16967, 31787, 78631, 86279, 118769, 213427, 603953, 1493989, 4055113, 28385791]

約数ペア:

[(1, 28385791), (7, 4055113), (19, 1493989), (47, 603953), (133, 213427), (239, 118769), (329, 86279), (361, 78631), (893, 31787), (1673, 16967), (2527, 11233), (4541, 6251)]