20666647539

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{673}}^1\times {\mathrm{1361}}^1$

素因数の和:2172

約数の個数: 48

約数和(自身を含む): 31505348160

約数和(自身を除く): 10838700621

約数列:

[1, 3, 9, 23, 69, 109, 207, 327, 673, 981, 1361, 2019, 2507, 4083, 6057, 7521, 12249, 15479, 22563, 31303, 46437, 73357, 93909, 139311, 148349, 220071, 281727, 445047, 660213, 915953, 1335141, 1687211, 2747859, 3412027, 5061633, 8243577, 10236081, 15184899, 21066919, 30708243, 63200757, 99838877, 189602271, 299516631, 898549893, 2296294171, 6888882513, 20666647539]

約数ペア:

[(1, 20666647539), (3, 6888882513), (9, 2296294171), (23, 898549893), (69, 299516631), (109, 189602271), (207, 99838877), (327, 63200757), (673, 30708243), (981, 21066919), (1361, 15184899), (2019, 10236081), (2507, 8243577), (4083, 5061633), (6057, 3412027), (7521, 2747859), (12249, 1687211), (15479, 1335141), (22563, 915953), (31303, 660213), (46437, 445047), (73357, 281727), (93909, 220071), (139311, 148349)]