18994311

素因数分解:

$3^3\times 7^4\times {\mathrm{293}}^1$

素因数の和:330

約数の個数: 40

約数和(自身を含む): 32939760

約数和(自身を除く): 13945449

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 293, 343, 441, 879, 1029, 1323, 2051, 2401, 2637, 3087, 6153, 7203, 7911, 9261, 14357, 18459, 21609, 43071, 55377, 64827, 100499, 129213, 301497, 387639, 703493, 904491, 2110479, 2713473, 6331437, 18994311]

約数ペア:

[(1, 18994311), (3, 6331437), (7, 2713473), (9, 2110479), (21, 904491), (27, 703493), (49, 387639), (63, 301497), (147, 129213), (189, 100499), (293, 64827), (343, 55377), (441, 43071), (879, 21609), (1029, 18459), (1323, 14357), (2051, 9261), (2401, 7911), (2637, 7203), (3087, 6153)]