20781646242

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1\times {\mathrm{12823}}^1$

素因数の和:13703

約数の個数: 64

約数和(自身を含む): 48574439424

約数和(自身を除く): 27792793182

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 141, 282, 329, 658, 821, 987, 1642, 1974, 2463, 4926, 5747, 11494, 12823, 17241, 25646, 34482, 38469, 38587, 76938, 77174, 89761, 115761, 179522, 231522, 269283, 270109, 538566, 540218, 602681, 810327, 1205362, 1620654, 1808043, 3616086, 4218767, 8437534, 10527683, 12656301, 21055366, 25312602, 31583049, 63166098, 73693781, 147387562, 221081343, 442162686, 494801101, 989602202, 1484403303, 2968806606, 3463607707, 6927215414, 10390823121, 20781646242]

約数ペア:

[(1, 20781646242), (2, 10390823121), (3, 6927215414), (6, 3463607707), (7, 2968806606), (14, 1484403303), (21, 989602202), (42, 494801101), (47, 442162686), (94, 221081343), (141, 147387562), (282, 73693781), (329, 63166098), (658, 31583049), (821, 25312602), (987, 21055366), (1642, 12656301), (1974, 10527683), (2463, 8437534), (4926, 4218767), (5747, 3616086), (11494, 1808043), (12823, 1620654), (17241, 1205362), (25646, 810327), (34482, 602681), (38469, 540218), (38587, 538566), (76938, 270109), (77174, 269283), (89761, 231522), (115761, 179522)]