21520272

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1$

素因数の和:328

約数の個数: 80

約数和(自身を含む): 58889088

約数和(自身を除く): 37368816

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 69, 92, 101, 138, 184, 193, 202, 276, 303, 368, 386, 404, 552, 579, 606, 772, 808, 1104, 1158, 1212, 1544, 1616, 2316, 2323, 2424, 3088, 4439, 4632, 4646, 4848, 6969, 8878, 9264, 9292, 13317, 13938, 17756, 18584, 19493, 26634, 27876, 35512, 37168, 38986, 53268, 55752, 58479, 71024, 77972, 106536, 111504, 116958, 155944, 213072, 233916, 311888, 448339, 467832, 896678, 935664, 1345017, 1793356, 2690034, 3586712, 5380068, 7173424, 10760136, 21520272]

約数ペア:

[(1, 21520272), (2, 10760136), (3, 7173424), (4, 5380068), (6, 3586712), (8, 2690034), (12, 1793356), (16, 1345017), (23, 935664), (24, 896678), (46, 467832), (48, 448339), (69, 311888), (92, 233916), (101, 213072), (138, 155944), (184, 116958), (193, 111504), (202, 106536), (276, 77972), (303, 71024), (368, 58479), (386, 55752), (404, 53268), (552, 38986), (579, 37168), (606, 35512), (772, 27876), (808, 26634), (1104, 19493), (1158, 18584), (1212, 17756), (1544, 13938), (1616, 13317), (2316, 9292), (2323, 9264), (2424, 8878), (3088, 6969), (4439, 4848), (4632, 4646)]