21968232

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:243

約数の個数: 128

約数和(自身を含む): 66648960

約数和(自身を除く): 44680728

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 22, 24, 26, 33, 37, 39, 44, 52, 66, 74, 78, 88, 104, 111, 132, 143, 148, 156, 173, 222, 264, 286, 296, 312, 346, 407, 429, 444, 481, 519, 572, 692, 814, 858, 888, 962, 1038, 1144, 1221, 1384, 1443, 1628, 1716, 1903, 1924, 2076, 2249, 2442, 2886, 3256, 3432, 3806, 3848, 4152, 4498, 4884, 5291, 5709, 5772, 6401, 6747, 7612, 8996, 9768, 10582, 11418, 11544, 12802, 13494, 15224, 15873, 17992, 19203, 21164, 22836, 24739, 25604, 26988, 31746, 38406, 42328, 45672, 49478, 51208, 53976, 63492, 70411, 74217, 76812, 83213, 98956, 126984, 140822, 148434, 153624, 166426, 197912, 211233, 249639, 281644, 296868, 332852, 422466, 499278, 563288, 593736, 665704, 844932, 915343, 998556, 1689864, 1830686, 1997112, 2746029, 3661372, 5492058, 7322744, 10984116, 21968232]

約数ペア:

[(1, 21968232), (2, 10984116), (3, 7322744), (4, 5492058), (6, 3661372), (8, 2746029), (11, 1997112), (12, 1830686), (13, 1689864), (22, 998556), (24, 915343), (26, 844932), (33, 665704), (37, 593736), (39, 563288), (44, 499278), (52, 422466), (66, 332852), (74, 296868), (78, 281644), (88, 249639), (104, 211233), (111, 197912), (132, 166426), (143, 153624), (148, 148434), (156, 140822), (173, 126984), (222, 98956), (264, 83213), (286, 76812), (296, 74217), (312, 70411), (346, 63492), (407, 53976), (429, 51208), (444, 49478), (481, 45672), (519, 42328), (572, 38406), (692, 31746), (814, 26988), (858, 25604), (888, 24739), (962, 22836), (1038, 21164), (1144, 19203), (1221, 17992), (1384, 15873), (1443, 15224), (1628, 13494), (1716, 12802), (1903, 11544), (1924, 11418), (2076, 10582), (2249, 9768), (2442, 8996), (2886, 7612), (3256, 6747), (3432, 6401), (3806, 5772), (3848, 5709), (4152, 5291), (4498, 4884)]