20570901

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:146

約数の個数: 64

約数和(自身を含む): 34836480

約数和(自身を除く): 14265579

約数列:

[1, 3, 13, 17, 19, 23, 39, 51, 57, 69, 71, 213, 221, 247, 299, 323, 391, 437, 663, 741, 897, 923, 969, 1173, 1207, 1311, 1349, 1633, 2769, 3621, 4047, 4199, 4899, 5083, 5681, 7429, 12597, 15249, 15691, 17043, 17537, 21229, 22287, 22933, 27761, 31027, 47073, 52611, 63687, 68799, 83283, 93081, 96577, 289731, 298129, 360893, 403351, 527459, 894387, 1082679, 1210053, 1582377, 6856967, 20570901]

約数ペア:

[(1, 20570901), (3, 6856967), (13, 1582377), (17, 1210053), (19, 1082679), (23, 894387), (39, 527459), (51, 403351), (57, 360893), (69, 298129), (71, 289731), (213, 96577), (221, 93081), (247, 83283), (299, 68799), (323, 63687), (391, 52611), (437, 47073), (663, 31027), (741, 27761), (897, 22933), (923, 22287), (969, 21229), (1173, 17537), (1207, 17043), (1311, 15691), (1349, 15249), (1633, 12597), (2769, 7429), (3621, 5681), (4047, 5083), (4199, 4899)]