27998964

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{811}}^1$

素因数の和:965

約数の個数: 72

約数和(自身を含む): 81576768

約数和(自身を除く): 53577804

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 137, 252, 274, 411, 548, 811, 822, 959, 1233, 1622, 1644, 1918, 2433, 2466, 2877, 3244, 3836, 4866, 4932, 5677, 5754, 7299, 8631, 9732, 11354, 11508, 14598, 17031, 17262, 22708, 29196, 34062, 34524, 51093, 68124, 102186, 111107, 204372, 222214, 333321, 444428, 666642, 777749, 999963, 1333284, 1555498, 1999926, 2333247, 3110996, 3999852, 4666494, 6999741, 9332988, 13999482, 27998964]

約数ペア:

[(1, 27998964), (2, 13999482), (3, 9332988), (4, 6999741), (6, 4666494), (7, 3999852), (9, 3110996), (12, 2333247), (14, 1999926), (18, 1555498), (21, 1333284), (28, 999963), (36, 777749), (42, 666642), (63, 444428), (84, 333321), (126, 222214), (137, 204372), (252, 111107), (274, 102186), (411, 68124), (548, 51093), (811, 34524), (822, 34062), (959, 29196), (1233, 22708), (1622, 17262), (1644, 17031), (1918, 14598), (2433, 11508), (2466, 11354), (2877, 9732), (3244, 8631), (3836, 7299), (4866, 5754), (4932, 5677)]