20663964

素因数分解:

$2^2\times 3^3\times {\mathrm{73}}^1\times {\mathrm{2621}}^1$

素因数の和:2707

約数の個数: 48

約数和(自身を含む): 54327840

約数和(自身を除く): 33663876

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 73, 108, 146, 219, 292, 438, 657, 876, 1314, 1971, 2621, 2628, 3942, 5242, 7863, 7884, 10484, 15726, 23589, 31452, 47178, 70767, 94356, 141534, 191333, 283068, 382666, 573999, 765332, 1147998, 1721997, 2295996, 3443994, 5165991, 6887988, 10331982, 20663964]

約数ペア:

[(1, 20663964), (2, 10331982), (3, 6887988), (4, 5165991), (6, 3443994), (9, 2295996), (12, 1721997), (18, 1147998), (27, 765332), (36, 573999), (54, 382666), (73, 283068), (108, 191333), (146, 141534), (219, 94356), (292, 70767), (438, 47178), (657, 31452), (876, 23589), (1314, 15726), (1971, 10484), (2621, 7884), (2628, 7863), (3942, 5242)]