18896823

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 31958784

約数和(自身を除く): 13061961

約数列:

[1, 3, 9, 11, 23, 33, 43, 69, 99, 129, 193, 207, 253, 387, 473, 579, 759, 989, 1419, 1737, 2123, 2277, 2967, 4257, 4439, 6369, 8299, 8901, 10879, 13317, 19107, 24897, 32637, 39951, 48829, 74691, 91289, 97911, 146487, 190877, 273867, 439461, 572631, 821601, 1717893, 2099647, 6298941, 18896823]

約数ペア:

[(1, 18896823), (3, 6298941), (9, 2099647), (11, 1717893), (23, 821601), (33, 572631), (43, 439461), (69, 273867), (99, 190877), (129, 146487), (193, 97911), (207, 91289), (253, 74691), (387, 48829), (473, 39951), (579, 32637), (759, 24897), (989, 19107), (1419, 13317), (1737, 10879), (2123, 8901), (2277, 8299), (2967, 6369), (4257, 4439)]