20971764

素因数分解:

$2^2\times 3^3\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:290

約数の個数: 96

約数和(自身を含む): 60211200

約数和(自身を除く): 39239436

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 99, 108, 127, 132, 139, 198, 254, 278, 297, 381, 396, 417, 508, 556, 594, 762, 834, 1143, 1188, 1251, 1397, 1524, 1529, 1668, 2286, 2502, 2794, 3058, 3429, 3753, 4191, 4572, 4587, 5004, 5588, 6116, 6858, 7506, 8382, 9174, 12573, 13716, 13761, 15012, 16764, 17653, 18348, 25146, 27522, 35306, 37719, 41283, 50292, 52959, 55044, 70612, 75438, 82566, 105918, 150876, 158877, 165132, 194183, 211836, 317754, 388366, 476631, 582549, 635508, 776732, 953262, 1165098, 1747647, 1906524, 2330196, 3495294, 5242941, 6990588, 10485882, 20971764]

約数ペア:

[(1, 20971764), (2, 10485882), (3, 6990588), (4, 5242941), (6, 3495294), (9, 2330196), (11, 1906524), (12, 1747647), (18, 1165098), (22, 953262), (27, 776732), (33, 635508), (36, 582549), (44, 476631), (54, 388366), (66, 317754), (99, 211836), (108, 194183), (127, 165132), (132, 158877), (139, 150876), (198, 105918), (254, 82566), (278, 75438), (297, 70612), (381, 55044), (396, 52959), (417, 50292), (508, 41283), (556, 37719), (594, 35306), (762, 27522), (834, 25146), (1143, 18348), (1188, 17653), (1251, 16764), (1397, 15012), (1524, 13761), (1529, 13716), (1668, 12573), (2286, 9174), (2502, 8382), (2794, 7506), (3058, 6858), (3429, 6116), (3753, 5588), (4191, 5004), (4572, 4587)]