7240779

素因数分解:

$3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:457

約数の個数: 48

約数和(自身を含む): 13470240

約数和(自身を除く): 6229461

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 91, 117, 147, 189, 273, 351, 421, 441, 637, 819, 1263, 1323, 1911, 2457, 2947, 3789, 5473, 5733, 8841, 11367, 16419, 17199, 20629, 26523, 38311, 49257, 61887, 79569, 114933, 147771, 185661, 268177, 344799, 556983, 804531, 1034397, 2413593, 7240779]

約数ペア:

[(1, 7240779), (3, 2413593), (7, 1034397), (9, 804531), (13, 556983), (21, 344799), (27, 268177), (39, 185661), (49, 147771), (63, 114933), (91, 79569), (117, 61887), (147, 49257), (189, 38311), (273, 26523), (351, 20629), (421, 17199), (441, 16419), (637, 11367), (819, 8841), (1263, 5733), (1323, 5473), (1911, 3789), (2457, 2947)]