20831664

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{521}}^1$

素因数の和:563

約数の個数: 120

約数和(自身を含む): 66410928

約数和(自身を除く): 45579264

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 34, 42, 48, 49, 51, 56, 68, 84, 98, 102, 112, 119, 136, 147, 168, 196, 204, 238, 272, 294, 336, 357, 392, 408, 476, 521, 588, 714, 784, 816, 833, 952, 1042, 1176, 1428, 1563, 1666, 1904, 2084, 2352, 2499, 2856, 3126, 3332, 3647, 4168, 4998, 5712, 6252, 6664, 7294, 8336, 8857, 9996, 10941, 12504, 13328, 14588, 17714, 19992, 21882, 25008, 25529, 26571, 29176, 35428, 39984, 43764, 51058, 53142, 58352, 61999, 70856, 76587, 87528, 102116, 106284, 123998, 141712, 153174, 175056, 185997, 204232, 212568, 247996, 306348, 371994, 408464, 425136, 433993, 495992, 612696, 743988, 867986, 991984, 1225392, 1301979, 1487976, 1735972, 2603958, 2975952, 3471944, 5207916, 6943888, 10415832, 20831664]

約数ペア:

[(1, 20831664), (2, 10415832), (3, 6943888), (4, 5207916), (6, 3471944), (7, 2975952), (8, 2603958), (12, 1735972), (14, 1487976), (16, 1301979), (17, 1225392), (21, 991984), (24, 867986), (28, 743988), (34, 612696), (42, 495992), (48, 433993), (49, 425136), (51, 408464), (56, 371994), (68, 306348), (84, 247996), (98, 212568), (102, 204232), (112, 185997), (119, 175056), (136, 153174), (147, 141712), (168, 123998), (196, 106284), (204, 102116), (238, 87528), (272, 76587), (294, 70856), (336, 61999), (357, 58352), (392, 53142), (408, 51058), (476, 43764), (521, 39984), (588, 35428), (714, 29176), (784, 26571), (816, 25529), (833, 25008), (952, 21882), (1042, 19992), (1176, 17714), (1428, 14588), (1563, 13328), (1666, 12504), (1904, 10941), (2084, 9996), (2352, 8857), (2499, 8336), (2856, 7294), (3126, 6664), (3332, 6252), (3647, 5712), (4168, 4998)]