20165722857

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{323651}}^1$

素因数の和:323730

約数の個数: 48

約数和(自身を含む): 35544757248

約数和(自身を除く): 15379034391

約数列:

[1, 3, 7, 9, 21, 23, 43, 63, 69, 129, 161, 207, 301, 387, 483, 903, 989, 1449, 2709, 2967, 6923, 8901, 20769, 62307, 323651, 970953, 2265557, 2912859, 6796671, 7443973, 13916993, 20390013, 22331919, 41750979, 52107811, 66995757, 97418951, 125252937, 156323433, 292256853, 320090839, 468970299, 876770559, 960272517, 2240635873, 2880817551, 6721907619, 20165722857]

約数ペア:

[(1, 20165722857), (3, 6721907619), (7, 2880817551), (9, 2240635873), (21, 960272517), (23, 876770559), (43, 468970299), (63, 320090839), (69, 292256853), (129, 156323433), (161, 125252937), (207, 97418951), (301, 66995757), (387, 52107811), (483, 41750979), (903, 22331919), (989, 20390013), (1449, 13916993), (2709, 7443973), (2967, 6796671), (6923, 2912859), (8901, 2265557), (20769, 970953), (62307, 323651)]