16690865

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{419}}^1$

素因数の和:712

約数の個数: 16

約数和(自身を含む): 20805120

約数和(自身を除く): 4114255

約数列:

[1, 5, 31, 155, 257, 419, 1285, 2095, 7967, 12989, 39835, 64945, 107683, 538415, 3338173, 16690865]

約数ペア:

[(1, 16690865), (5, 3338173), (31, 538415), (155, 107683), (257, 64945), (419, 39835), (1285, 12989), (2095, 7967)]