18663984

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:195

約数の個数: 120

約数和(自身を含む): 55865472

約数和(自身を除く): 37201488

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 37, 48, 62, 72, 74, 93, 111, 113, 124, 144, 148, 186, 222, 226, 248, 279, 296, 333, 339, 372, 444, 452, 496, 558, 592, 666, 678, 744, 888, 904, 1017, 1116, 1147, 1332, 1356, 1488, 1776, 1808, 2034, 2232, 2294, 2664, 2712, 3441, 3503, 4068, 4181, 4464, 4588, 5328, 5424, 6882, 7006, 8136, 8362, 9176, 10323, 10509, 12543, 13764, 14012, 16272, 16724, 18352, 20646, 21018, 25086, 27528, 28024, 31527, 33448, 37629, 41292, 42036, 50172, 55056, 56048, 63054, 66896, 75258, 82584, 84072, 100344, 126108, 129611, 150516, 165168, 168144, 200688, 252216, 259222, 301032, 388833, 504432, 518444, 602064, 777666, 1036888, 1166499, 1555332, 2073776, 2332998, 3110664, 4665996, 6221328, 9331992, 18663984]

約数ペア:

[(1, 18663984), (2, 9331992), (3, 6221328), (4, 4665996), (6, 3110664), (8, 2332998), (9, 2073776), (12, 1555332), (16, 1166499), (18, 1036888), (24, 777666), (31, 602064), (36, 518444), (37, 504432), (48, 388833), (62, 301032), (72, 259222), (74, 252216), (93, 200688), (111, 168144), (113, 165168), (124, 150516), (144, 129611), (148, 126108), (186, 100344), (222, 84072), (226, 82584), (248, 75258), (279, 66896), (296, 63054), (333, 56048), (339, 55056), (372, 50172), (444, 42036), (452, 41292), (496, 37629), (558, 33448), (592, 31527), (666, 28024), (678, 27528), (744, 25086), (888, 21018), (904, 20646), (1017, 18352), (1116, 16724), (1147, 16272), (1332, 14012), (1356, 13764), (1488, 12543), (1776, 10509), (1808, 10323), (2034, 9176), (2232, 8362), (2294, 8136), (2664, 7006), (2712, 6882), (3441, 5424), (3503, 5328), (4068, 4588), (4181, 4464)]