21981784.000000000

素因数分解:

$2^3\times 3^4\times {\mathrm{164569}}^1$

素因数の和:164587

約数の個数: 40

約数和(自身を含む): 298694550

約数和(自身を除く): 192053838

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 164569, 329138, 493707, 658276, 987414, 1316552, 1481121, 1974828, 2962242, 3949656, 4443363, 5924484, 8886726, 11848968, 13330089, 17773452, 26660178, 35546904, 53320356, 106640712]

約数ペア:

[(1, 106640712), (2, 53320356), (3, 35546904), (4, 26660178), (6, 17773452), (8, 13330089), (9, 11848968), (12, 8886726), (18, 5924484), (24, 4443363), (27, 3949656), (36, 2962242), (54, 1974828), (72, 1481121), (81, 1316552), (108, 987414), (162, 658276), (216, 493707), (324, 329138), (648, 164569)]