20789300889

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{156467}}^1$

素因数の和:156539

約数の個数: 64

約数和(自身を含む): 38053017600

約数和(自身を除く): 17263716711

約数列:

[1, 3, 7, 9, 19, 21, 27, 37, 57, 63, 111, 133, 171, 189, 259, 333, 399, 513, 703, 777, 999, 1197, 2109, 2331, 3591, 4921, 6327, 6993, 14763, 18981, 44289, 132867, 156467, 469401, 1095269, 1408203, 2972873, 3285807, 4224609, 5789279, 8918619, 9857421, 17367837, 20810111, 26755857, 29572263, 40524953, 52103511, 62430333, 80267571, 109996301, 121574859, 156310533, 187290999, 329988903, 364724577, 561872997, 769974107, 989966709, 1094173731, 2309922321, 2969900127, 6929766963, 20789300889]

約数ペア:

[(1, 20789300889), (3, 6929766963), (7, 2969900127), (9, 2309922321), (19, 1094173731), (21, 989966709), (27, 769974107), (37, 561872997), (57, 364724577), (63, 329988903), (111, 187290999), (133, 156310533), (171, 121574859), (189, 109996301), (259, 80267571), (333, 62430333), (399, 52103511), (513, 40524953), (703, 29572263), (777, 26755857), (999, 20810111), (1197, 17367837), (2109, 9857421), (2331, 8918619), (3591, 5789279), (4921, 4224609), (6327, 3285807), (6993, 2972873), (14763, 1408203), (18981, 1095269), (44289, 469401), (132867, 156467)]