21002976

素因数分解:

$2^5\times 3^5\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:135

約数の個数: 144

約数和(自身を含む): 64484784

約数和(自身を除く): 43481808

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 37, 48, 54, 72, 73, 74, 81, 96, 108, 111, 144, 146, 148, 162, 216, 219, 222, 243, 288, 292, 296, 324, 333, 432, 438, 444, 486, 584, 592, 648, 657, 666, 864, 876, 888, 972, 999, 1168, 1184, 1296, 1314, 1332, 1752, 1776, 1944, 1971, 1998, 2336, 2592, 2628, 2664, 2701, 2997, 3504, 3552, 3888, 3942, 3996, 5256, 5328, 5402, 5913, 5994, 7008, 7776, 7884, 7992, 8103, 8991, 10512, 10656, 10804, 11826, 11988, 15768, 15984, 16206, 17739, 17982, 21024, 21608, 23652, 23976, 24309, 31536, 31968, 32412, 35478, 35964, 43216, 47304, 47952, 48618, 63072, 64824, 70956, 71928, 72927, 86432, 94608, 95904, 97236, 129648, 141912, 143856, 145854, 189216, 194472, 218781, 259296, 283824, 287712, 291708, 388944, 437562, 567648, 583416, 656343, 777888, 875124, 1166832, 1312686, 1750248, 2333664, 2625372, 3500496, 5250744, 7000992, 10501488, 21002976]

約数ペア:

[(1, 21002976), (2, 10501488), (3, 7000992), (4, 5250744), (6, 3500496), (8, 2625372), (9, 2333664), (12, 1750248), (16, 1312686), (18, 1166832), (24, 875124), (27, 777888), (32, 656343), (36, 583416), (37, 567648), (48, 437562), (54, 388944), (72, 291708), (73, 287712), (74, 283824), (81, 259296), (96, 218781), (108, 194472), (111, 189216), (144, 145854), (146, 143856), (148, 141912), (162, 129648), (216, 97236), (219, 95904), (222, 94608), (243, 86432), (288, 72927), (292, 71928), (296, 70956), (324, 64824), (333, 63072), (432, 48618), (438, 47952), (444, 47304), (486, 43216), (584, 35964), (592, 35478), (648, 32412), (657, 31968), (666, 31536), (864, 24309), (876, 23976), (888, 23652), (972, 21608), (999, 21024), (1168, 17982), (1184, 17739), (1296, 16206), (1314, 15984), (1332, 15768), (1752, 11988), (1776, 11826), (1944, 10804), (1971, 10656), (1998, 10512), (2336, 8991), (2592, 8103), (2628, 7992), (2664, 7884), (2701, 7776), (2997, 7008), (3504, 5994), (3552, 5913), (3888, 5402), (3942, 5328), (3996, 5256)]