21319344

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 120

約数和(自身を含む): 64183392

約数和(自身を除く): 42864048

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 36, 41, 46, 48, 69, 72, 82, 92, 123, 138, 144, 157, 164, 184, 207, 246, 276, 314, 328, 368, 369, 414, 471, 492, 552, 628, 656, 738, 828, 942, 943, 984, 1104, 1256, 1413, 1476, 1656, 1884, 1886, 1968, 2512, 2826, 2829, 2952, 3312, 3611, 3768, 3772, 5652, 5658, 5904, 6437, 7222, 7536, 7544, 8487, 10833, 11304, 11316, 12874, 14444, 15088, 16974, 19311, 21666, 22608, 22632, 25748, 28888, 32499, 33948, 38622, 43332, 45264, 51496, 57776, 57933, 64998, 67896, 77244, 86664, 102992, 115866, 129996, 135792, 148051, 154488, 173328, 231732, 259992, 296102, 308976, 444153, 463464, 519984, 592204, 888306, 926928, 1184408, 1332459, 1776612, 2368816, 2664918, 3553224, 5329836, 7106448, 10659672, 21319344]

約数ペア:

[(1, 21319344), (2, 10659672), (3, 7106448), (4, 5329836), (6, 3553224), (8, 2664918), (9, 2368816), (12, 1776612), (16, 1332459), (18, 1184408), (23, 926928), (24, 888306), (36, 592204), (41, 519984), (46, 463464), (48, 444153), (69, 308976), (72, 296102), (82, 259992), (92, 231732), (123, 173328), (138, 154488), (144, 148051), (157, 135792), (164, 129996), (184, 115866), (207, 102992), (246, 86664), (276, 77244), (314, 67896), (328, 64998), (368, 57933), (369, 57776), (414, 51496), (471, 45264), (492, 43332), (552, 38622), (628, 33948), (656, 32499), (738, 28888), (828, 25748), (942, 22632), (943, 22608), (984, 21666), (1104, 19311), (1256, 16974), (1413, 15088), (1476, 14444), (1656, 12874), (1884, 11316), (1886, 11304), (1968, 10833), (2512, 8487), (2826, 7544), (2829, 7536), (2952, 7222), (3312, 6437), (3611, 5904), (3768, 5658), (3772, 5652)]