20786723982

素因数分解:

$2^1\times 3^5\times {\mathrm{163}}^1\times {\mathrm{262399}}^1$

素因数の和:262579

約数の個数: 48

約数和(自身を含む): 46992691200

約数和(自身を除く): 26205967218

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 163, 243, 326, 486, 489, 978, 1467, 2934, 4401, 8802, 13203, 26406, 39609, 79218, 262399, 524798, 787197, 1574394, 2361591, 4723182, 7084773, 14169546, 21254319, 42508638, 42771037, 63762957, 85542074, 127525914, 128313111, 256626222, 384939333, 769878666, 1154817999, 2309635998, 3464453997, 6928907994, 10393361991, 20786723982]

約数ペア:

[(1, 20786723982), (2, 10393361991), (3, 6928907994), (6, 3464453997), (9, 2309635998), (18, 1154817999), (27, 769878666), (54, 384939333), (81, 256626222), (162, 128313111), (163, 127525914), (243, 85542074), (326, 63762957), (486, 42771037), (489, 42508638), (978, 21254319), (1467, 14169546), (2934, 7084773), (4401, 4723182), (8802, 2361591), (13203, 1574394), (26406, 787197), (39609, 524798), (79218, 262399)]