20704827

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{167}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 34659072

約数和(自身を除く): 13954245

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 167, 187, 221, 289, 429, 501, 561, 663, 867, 1837, 2171, 2431, 2839, 3179, 3757, 5511, 6513, 7293, 8517, 9537, 11271, 23881, 31229, 36907, 41327, 48263, 71643, 93687, 110721, 123981, 144789, 405977, 530893, 627419, 1217931, 1592679, 1882257, 6901609, 20704827]

約数ペア:

[(1, 20704827), (3, 6901609), (11, 1882257), (13, 1592679), (17, 1217931), (33, 627419), (39, 530893), (51, 405977), (143, 144789), (167, 123981), (187, 110721), (221, 93687), (289, 71643), (429, 48263), (501, 41327), (561, 36907), (663, 31229), (867, 23881), (1837, 11271), (2171, 9537), (2431, 8517), (2839, 7293), (3179, 6513), (3757, 5511)]