2151989

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:296

約数の個数: 16

約数和(自身を含む): 2605056

約数和(自身を除く): 453067

約数列:

[1, 7, 31, 47, 211, 217, 329, 1457, 1477, 6541, 9917, 10199, 45787, 69419, 307427, 2151989]

約数ペア:

[(1, 2151989), (7, 307427), (31, 69419), (47, 45787), (211, 10199), (217, 9917), (329, 6541), (1457, 1477)]