20822319

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^2\times {\mathrm{131}}^1$

素因数の和:205

約数の個数: 48

約数和(自身を含む): 36791040

約数和(自身を除く): 15968721

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 131, 189, 203, 261, 393, 609, 783, 841, 917, 1179, 1827, 2523, 2751, 3537, 3799, 5481, 5887, 7569, 8253, 11397, 17661, 22707, 24759, 26593, 34191, 52983, 79779, 102573, 110171, 158949, 239337, 330513, 718011, 771197, 991539, 2313591, 2974617, 6940773, 20822319]

約数ペア:

[(1, 20822319), (3, 6940773), (7, 2974617), (9, 2313591), (21, 991539), (27, 771197), (29, 718011), (63, 330513), (87, 239337), (131, 158949), (189, 110171), (203, 102573), (261, 79779), (393, 52983), (609, 34191), (783, 26593), (841, 24759), (917, 22707), (1179, 17661), (1827, 11397), (2523, 8253), (2751, 7569), (3537, 5887), (3799, 5481)]