31805163

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:169

約数の個数: 64

約数和(自身を含む): 54476800

約数和(自身を除く): 22671637

約数列:

[1, 3, 9, 13, 27, 31, 37, 39, 79, 93, 111, 117, 237, 279, 333, 351, 403, 481, 711, 837, 999, 1027, 1147, 1209, 1443, 2133, 2449, 2923, 3081, 3441, 3627, 4329, 7347, 8769, 9243, 10323, 10881, 12987, 14911, 22041, 26307, 27729, 30969, 31837, 37999, 44733, 66123, 78921, 90613, 95511, 113997, 134199, 271839, 286533, 341991, 402597, 815517, 859599, 1025973, 1177969, 2446551, 3533907, 10601721, 31805163]

約数ペア:

[(1, 31805163), (3, 10601721), (9, 3533907), (13, 2446551), (27, 1177969), (31, 1025973), (37, 859599), (39, 815517), (79, 402597), (93, 341991), (111, 286533), (117, 271839), (237, 134199), (279, 113997), (333, 95511), (351, 90613), (403, 78921), (481, 66123), (711, 44733), (837, 37999), (999, 31837), (1027, 30969), (1147, 27729), (1209, 26307), (1443, 22041), (2133, 14911), (2449, 12987), (2923, 10881), (3081, 10323), (3441, 9243), (3627, 8769), (4329, 7347)]