20111208

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{883}}^1$

素因数の和:978

約数の個数: 64

約数和(自身を含む): 54949440

約数和(自身を除く): 34838232

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 73, 78, 104, 146, 156, 219, 292, 312, 438, 584, 876, 883, 949, 1752, 1766, 1898, 2649, 2847, 3532, 3796, 5298, 5694, 7064, 7592, 10596, 11388, 11479, 21192, 22776, 22958, 34437, 45916, 64459, 68874, 91832, 128918, 137748, 193377, 257836, 275496, 386754, 515672, 773508, 837967, 1547016, 1675934, 2513901, 3351868, 5027802, 6703736, 10055604, 20111208]

約数ペア:

[(1, 20111208), (2, 10055604), (3, 6703736), (4, 5027802), (6, 3351868), (8, 2513901), (12, 1675934), (13, 1547016), (24, 837967), (26, 773508), (39, 515672), (52, 386754), (73, 275496), (78, 257836), (104, 193377), (146, 137748), (156, 128918), (219, 91832), (292, 68874), (312, 64459), (438, 45916), (584, 34437), (876, 22958), (883, 22776), (949, 21192), (1752, 11479), (1766, 11388), (1898, 10596), (2649, 7592), (2847, 7064), (3532, 5694), (3796, 5298)]