25211979

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 42561792

約数和(自身を除く): 17349813

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 243, 299, 347, 351, 621, 897, 1041, 1053, 1863, 2691, 3123, 3159, 4511, 5589, 7981, 8073, 9369, 13533, 23943, 24219, 28107, 40599, 71829, 72657, 84321, 103753, 121797, 215487, 311259, 365391, 646461, 933777, 1096173, 1939383, 2801331, 8403993, 25211979]

約数ペア:

[(1, 25211979), (3, 8403993), (9, 2801331), (13, 1939383), (23, 1096173), (27, 933777), (39, 646461), (69, 365391), (81, 311259), (117, 215487), (207, 121797), (243, 103753), (299, 84321), (347, 72657), (351, 71829), (621, 40599), (897, 28107), (1041, 24219), (1053, 23943), (1863, 13533), (2691, 9369), (3123, 8073), (3159, 7981), (4511, 5589)]