20921863209

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{45691}}^1$

素因数の和:45965

約数の個数: 32

約数和(自身を含む): 30705024000

約数和(自身を除く): 9783160791

約数列:

[1, 3, 13, 39, 59, 177, 199, 597, 767, 2301, 2587, 7761, 11741, 35223, 45691, 137073, 152633, 457899, 593983, 1781949, 2695769, 8087307, 9092509, 27277527, 35044997, 105134991, 118202617, 354607851, 536458031, 1609374093, 6973954403, 20921863209]

約数ペア:

[(1, 20921863209), (3, 6973954403), (13, 1609374093), (39, 536458031), (59, 354607851), (177, 118202617), (199, 105134991), (597, 35044997), (767, 27277527), (2301, 9092509), (2587, 8087307), (7761, 2695769), (11741, 1781949), (35223, 593983), (45691, 457899), (137073, 152633)]