18782001

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 32747520

約数和(自身を除く): 13965519

約数列:

[1, 3, 7, 9, 21, 31, 59, 63, 93, 163, 177, 217, 279, 413, 489, 531, 651, 1141, 1239, 1467, 1829, 1953, 3423, 3717, 5053, 5487, 9617, 10269, 12803, 15159, 16461, 28851, 35371, 38409, 45477, 67319, 86553, 106113, 115227, 201957, 298127, 318339, 605871, 894381, 2086889, 2683143, 6260667, 18782001]

約数ペア:

[(1, 18782001), (3, 6260667), (7, 2683143), (9, 2086889), (21, 894381), (31, 605871), (59, 318339), (63, 298127), (93, 201957), (163, 115227), (177, 106113), (217, 86553), (279, 67319), (413, 45477), (489, 38409), (531, 35371), (651, 28851), (1141, 16461), (1239, 15159), (1467, 12803), (1829, 10269), (1953, 9617), (3423, 5487), (3717, 5053)]