19986345368

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{389567}}^1$

素因数の和:389648

約数の個数: 48

約数和(自身を含む): 41968160640

約数和(自身を除く): 21981815272

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 88, 106, 121, 212, 242, 424, 484, 583, 968, 1166, 2332, 4664, 6413, 12826, 25652, 51304, 389567, 779134, 1558268, 3116536, 4285237, 8570474, 17140948, 20647051, 34281896, 41294102, 47137607, 82588204, 94275214, 165176408, 188550428, 227117561, 377100856, 454235122, 908470244, 1816940488, 2498293171, 4996586342, 9993172684, 19986345368]

約数ペア:

[(1, 19986345368), (2, 9993172684), (4, 4996586342), (8, 2498293171), (11, 1816940488), (22, 908470244), (44, 454235122), (53, 377100856), (88, 227117561), (106, 188550428), (121, 165176408), (212, 94275214), (242, 82588204), (424, 47137607), (484, 41294102), (583, 34281896), (968, 20647051), (1166, 17140948), (2332, 8570474), (4664, 4285237), (6413, 3116536), (12826, 1558268), (25652, 779134), (51304, 389567)]