7181811

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 64

約数和(自身を含む): 13619200

約数和(自身を除く): 6437389

約数列:

[1, 3, 7, 9, 13, 21, 27, 37, 39, 63, 79, 91, 111, 117, 189, 237, 259, 273, 333, 351, 481, 553, 711, 777, 819, 999, 1027, 1443, 1659, 2133, 2331, 2457, 2923, 3081, 3367, 4329, 4977, 6993, 7189, 8769, 9243, 10101, 12987, 14931, 20461, 21567, 26307, 27729, 30303, 37999, 61383, 64701, 78921, 90909, 113997, 184149, 194103, 265993, 341991, 552447, 797979, 1025973, 2393937, 7181811]

約数ペア:

[(1, 7181811), (3, 2393937), (7, 1025973), (9, 797979), (13, 552447), (21, 341991), (27, 265993), (37, 194103), (39, 184149), (63, 113997), (79, 90909), (91, 78921), (111, 64701), (117, 61383), (189, 37999), (237, 30303), (259, 27729), (273, 26307), (333, 21567), (351, 20461), (481, 14931), (553, 12987), (711, 10101), (777, 9243), (819, 8769), (999, 7189), (1027, 6993), (1443, 4977), (1659, 4329), (2133, 3367), (2331, 3081), (2457, 2923)]