28045591

素因数分解:

$7^2\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:271

約数の個数: 24

約数和(自身を含む): 33858000

約数和(自身を除く): 5812409

約数列:

[1, 7, 49, 59, 89, 109, 413, 623, 763, 2891, 4361, 5251, 5341, 6431, 9701, 36757, 45017, 67907, 257299, 315119, 475349, 572359, 4006513, 28045591]

約数ペア:

[(1, 28045591), (7, 4006513), (49, 572359), (59, 475349), (89, 315119), (109, 257299), (413, 67907), (623, 45017), (763, 36757), (2891, 9701), (4361, 6431), (5251, 5341)]