18921456

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:263

約数の個数: 120

約数和(自身を含む): 57451680

約数和(自身を除く): 38530224

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 29, 36, 46, 48, 58, 69, 72, 87, 92, 116, 138, 144, 174, 184, 197, 207, 232, 261, 276, 348, 368, 394, 414, 464, 522, 552, 591, 667, 696, 788, 828, 1044, 1104, 1182, 1334, 1392, 1576, 1656, 1773, 2001, 2088, 2364, 2668, 3152, 3312, 3546, 4002, 4176, 4531, 4728, 5336, 5713, 6003, 7092, 8004, 9062, 9456, 10672, 11426, 12006, 13593, 14184, 16008, 17139, 18124, 22852, 24012, 27186, 28368, 32016, 34278, 36248, 40779, 45704, 48024, 51417, 54372, 68556, 72496, 81558, 91408, 96048, 102834, 108744, 131399, 137112, 163116, 205668, 217488, 262798, 274224, 326232, 394197, 411336, 525596, 652464, 788394, 822672, 1051192, 1182591, 1576788, 2102384, 2365182, 3153576, 4730364, 6307152, 9460728, 18921456]

約数ペア:

[(1, 18921456), (2, 9460728), (3, 6307152), (4, 4730364), (6, 3153576), (8, 2365182), (9, 2102384), (12, 1576788), (16, 1182591), (18, 1051192), (23, 822672), (24, 788394), (29, 652464), (36, 525596), (46, 411336), (48, 394197), (58, 326232), (69, 274224), (72, 262798), (87, 217488), (92, 205668), (116, 163116), (138, 137112), (144, 131399), (174, 108744), (184, 102834), (197, 96048), (207, 91408), (232, 81558), (261, 72496), (276, 68556), (348, 54372), (368, 51417), (394, 48024), (414, 45704), (464, 40779), (522, 36248), (552, 34278), (591, 32016), (667, 28368), (696, 27186), (788, 24012), (828, 22852), (1044, 18124), (1104, 17139), (1182, 16008), (1334, 14184), (1392, 13593), (1576, 12006), (1656, 11426), (1773, 10672), (2001, 9456), (2088, 9062), (2364, 8004), (2668, 7092), (3152, 6003), (3312, 5713), (3546, 5336), (4002, 4728), (4176, 4531)]