28155831

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 42425856

約数和(自身を除く): 14270025

約数列:

[1, 3, 11, 33, 61, 71, 183, 197, 213, 591, 671, 781, 2013, 2167, 2343, 4331, 6501, 12017, 12993, 13987, 36051, 41961, 47641, 132187, 142923, 153857, 396561, 461571, 853207, 2559621, 9385277, 28155831]

約数ペア:

[(1, 28155831), (3, 9385277), (11, 2559621), (33, 853207), (61, 461571), (71, 396561), (183, 153857), (197, 142923), (213, 132187), (591, 47641), (671, 41961), (781, 36051), (2013, 13987), (2167, 12993), (2343, 12017), (4331, 6501)]