20977456.000000000

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{30781}}^1$

素因数の和:30813

約数の個数: 96

約数和(自身を含む): 672278880

約数和(自身を除く): 470601768

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 28, 36, 39, 42, 52, 56, 63, 72, 78, 84, 91, 104, 117, 126, 156, 168, 182, 234, 252, 273, 312, 364, 468, 504, 546, 728, 819, 936, 1092, 1638, 2184, 3276, 6552, 30781, 61562, 92343, 123124, 184686, 215467, 246248, 277029, 369372, 400153, 430934, 554058, 646401, 738744, 800306, 861868, 1108116, 1200459, 1292802, 1600612, 1723736, 1939203, 2216232, 2400918, 2585604, 2801071, 3201224, 3601377, 3878406, 4801836, 5171208, 5602142, 7202754, 7756812, 8403213, 9603672, 11204284, 14405508, 15513624, 16806426, 22408568, 25209639, 28811016, 33612852, 50419278, 67225704, 100838556, 201677112]

約数ペア:

[(1, 201677112), (2, 100838556), (3, 67225704), (4, 50419278), (6, 33612852), (7, 28811016), (8, 25209639), (9, 22408568), (12, 16806426), (13, 15513624), (14, 14405508), (18, 11204284), (21, 9603672), (24, 8403213), (26, 7756812), (28, 7202754), (36, 5602142), (39, 5171208), (42, 4801836), (52, 3878406), (56, 3601377), (63, 3201224), (72, 2801071), (78, 2585604), (84, 2400918), (91, 2216232), (104, 1939203), (117, 1723736), (126, 1600612), (156, 1292802), (168, 1200459), (182, 1108116), (234, 861868), (252, 800306), (273, 738744), (312, 646401), (364, 554058), (468, 430934), (504, 400153), (546, 369372), (728, 277029), (819, 246248), (936, 215467), (1092, 184686), (1638, 123124), (2184, 92343), (3276, 61562), (6552, 30781)]