20797911

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{313}}^1$

素因数の和:452

約数の個数: 32

約数和(自身を含む): 32555520

約数和(自身を除く): 11757609

約数列:

[1, 3, 9, 23, 27, 69, 107, 207, 313, 321, 621, 939, 963, 2461, 2817, 2889, 7199, 7383, 8451, 21597, 22149, 33491, 64791, 66447, 100473, 194373, 301419, 770293, 904257, 2310879, 6932637, 20797911]

約数ペア:

[(1, 20797911), (3, 6932637), (9, 2310879), (23, 904257), (27, 770293), (69, 301419), (107, 194373), (207, 100473), (313, 66447), (321, 64791), (621, 33491), (939, 22149), (963, 21597), (2461, 8451), (2817, 7383), (2889, 7199)]