279262809

素因数分解:

$3^4\times 7^2\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1088

約数の個数: 60

約数和(自身を含む): 492611328

約数和(自身を除く): 213348519

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 71, 81, 147, 189, 213, 441, 497, 567, 639, 991, 1323, 1491, 1917, 2973, 3479, 3969, 4473, 5751, 6937, 8919, 10437, 13419, 20811, 26757, 31311, 40257, 48559, 62433, 70361, 80271, 93933, 145677, 187299, 211083, 281799, 437031, 492527, 561897, 633249, 1311093, 1477581, 1899747, 3447689, 3933279, 4432743, 5699241, 10343067, 13298229, 31029201, 39894687, 93087603, 279262809]

約数ペア:

[(1, 279262809), (3, 93087603), (7, 39894687), (9, 31029201), (21, 13298229), (27, 10343067), (49, 5699241), (63, 4432743), (71, 3933279), (81, 3447689), (147, 1899747), (189, 1477581), (213, 1311093), (441, 633249), (497, 561897), (567, 492527), (639, 437031), (991, 281799), (1323, 211083), (1491, 187299), (1917, 145677), (2973, 93933), (3479, 80271), (3969, 70361), (4473, 62433), (5751, 48559), (6937, 40257), (8919, 31311), (10437, 26757), (13419, 20811)]