20492241

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:99

約数の個数: 96

約数和(自身を含む): 39398400

約数和(自身を除く): 18906159

約数列:

[1, 3, 7, 11, 19, 21, 23, 29, 33, 49, 57, 69, 77, 87, 133, 147, 161, 203, 209, 231, 253, 319, 399, 437, 483, 539, 551, 609, 627, 667, 759, 931, 957, 1127, 1311, 1421, 1463, 1617, 1653, 1771, 2001, 2233, 2793, 3059, 3381, 3857, 4263, 4389, 4669, 4807, 5313, 6061, 6699, 7337, 9177, 10241, 11571, 12397, 12673, 14007, 14421, 15631, 18183, 21413, 22011, 26999, 30723, 32683, 33649, 37191, 38019, 42427, 46893, 51359, 64239, 80997, 88711, 98049, 100947, 127281, 139403, 154077, 235543, 266133, 296989, 359513, 418209, 620977, 706629, 890967, 975821, 1078539, 1862931, 2927463, 6830747, 20492241]

約数ペア:

[(1, 20492241), (3, 6830747), (7, 2927463), (11, 1862931), (19, 1078539), (21, 975821), (23, 890967), (29, 706629), (33, 620977), (49, 418209), (57, 359513), (69, 296989), (77, 266133), (87, 235543), (133, 154077), (147, 139403), (161, 127281), (203, 100947), (209, 98049), (231, 88711), (253, 80997), (319, 64239), (399, 51359), (437, 46893), (483, 42427), (539, 38019), (551, 37191), (609, 33649), (627, 32683), (667, 30723), (759, 26999), (931, 22011), (957, 21413), (1127, 18183), (1311, 15631), (1421, 14421), (1463, 14007), (1617, 12673), (1653, 12397), (1771, 11571), (2001, 10241), (2233, 9177), (2793, 7337), (3059, 6699), (3381, 6061), (3857, 5313), (4263, 4807), (4389, 4669)]