20975504004

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6402779}}^1$

素因数の和:6402809

約数の個数: 72

約数和(自身を含む): 65257133760

約数和(自身を除く): 44281629756

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 6402779, 12805558, 19208337, 25611116, 38416674, 44819453, 57625011, 76833348, 83236127, 89638906, 115250022, 134458359, 166472254, 179277812, 230500044, 249708381, 268916718, 332944508, 403375077, 499416762, 537833436, 582652889, 749125143, 806750154, 998833524, 1165305778, 1498250286, 1613500308, 1747958667, 2330611556, 2996500572, 3495917334, 5243876001, 6991834668, 10487752002, 20975504004]

約数ペア:

[(1, 20975504004), (2, 10487752002), (3, 6991834668), (4, 5243876001), (6, 3495917334), (7, 2996500572), (9, 2330611556), (12, 1747958667), (13, 1613500308), (14, 1498250286), (18, 1165305778), (21, 998833524), (26, 806750154), (28, 749125143), (36, 582652889), (39, 537833436), (42, 499416762), (52, 403375077), (63, 332944508), (78, 268916718), (84, 249708381), (91, 230500044), (117, 179277812), (126, 166472254), (156, 134458359), (182, 115250022), (234, 89638906), (252, 83236127), (273, 76833348), (364, 57625011), (468, 44819453), (546, 38416674), (819, 25611116), (1092, 19208337), (1638, 12805558), (3276, 6402779)]