215259009

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{47237}}^1$

素因数の和:47285

約数の個数: 24

約数和(自身を含む): 344648448

約数和(自身を除く): 129389439

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4557, 47237, 141711, 330659, 991977, 1464347, 2314613, 4393041, 6943839, 10250429, 30751287, 71753003, 215259009]

約数ペア:

[(1, 215259009), (3, 71753003), (7, 30751287), (21, 10250429), (31, 6943839), (49, 4393041), (93, 2314613), (147, 1464347), (217, 991977), (651, 330659), (1519, 141711), (4557, 47237)]