21200112

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:247

約数の個数: 120

約数和(自身を含む): 63951264

約数和(自身を除く): 42751152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 36, 37, 46, 48, 69, 72, 74, 92, 111, 138, 144, 148, 173, 184, 207, 222, 276, 296, 333, 346, 368, 414, 444, 519, 552, 592, 666, 692, 828, 851, 888, 1038, 1104, 1332, 1384, 1557, 1656, 1702, 1776, 2076, 2553, 2664, 2768, 3114, 3312, 3404, 3979, 4152, 5106, 5328, 6228, 6401, 6808, 7659, 7958, 8304, 10212, 11937, 12456, 12802, 13616, 15318, 15916, 19203, 20424, 23874, 24912, 25604, 30636, 31832, 35811, 38406, 40848, 47748, 51208, 57609, 61272, 63664, 71622, 76812, 95496, 102416, 115218, 122544, 143244, 147223, 153624, 190992, 230436, 286488, 294446, 307248, 441669, 460872, 572976, 588892, 883338, 921744, 1177784, 1325007, 1766676, 2355568, 2650014, 3533352, 5300028, 7066704, 10600056, 21200112]

約数ペア:

[(1, 21200112), (2, 10600056), (3, 7066704), (4, 5300028), (6, 3533352), (8, 2650014), (9, 2355568), (12, 1766676), (16, 1325007), (18, 1177784), (23, 921744), (24, 883338), (36, 588892), (37, 572976), (46, 460872), (48, 441669), (69, 307248), (72, 294446), (74, 286488), (92, 230436), (111, 190992), (138, 153624), (144, 147223), (148, 143244), (173, 122544), (184, 115218), (207, 102416), (222, 95496), (276, 76812), (296, 71622), (333, 63664), (346, 61272), (368, 57609), (414, 51208), (444, 47748), (519, 40848), (552, 38406), (592, 35811), (666, 31832), (692, 30636), (828, 25604), (851, 24912), (888, 23874), (1038, 20424), (1104, 19203), (1332, 15916), (1384, 15318), (1557, 13616), (1656, 12802), (1702, 12456), (1776, 11937), (2076, 10212), (2553, 8304), (2664, 7958), (2768, 7659), (3114, 6808), (3312, 6401), (3404, 6228), (3979, 5328), (4152, 5106)]