13120191

素因数分解:

$3^3\times 7^2\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:281

約数の個数: 48

約数和(自身を含む): 23201280

約数和(自身を除く): 10081089

約数列:

[1, 3, 7, 9, 21, 27, 47, 49, 63, 141, 147, 189, 211, 329, 423, 441, 633, 987, 1269, 1323, 1477, 1899, 2303, 2961, 4431, 5697, 6909, 8883, 9917, 10339, 13293, 20727, 29751, 31017, 39879, 62181, 69419, 89253, 93051, 208257, 267759, 279153, 485933, 624771, 1457799, 1874313, 4373397, 13120191]

約数ペア:

[(1, 13120191), (3, 4373397), (7, 1874313), (9, 1457799), (21, 624771), (27, 485933), (47, 279153), (49, 267759), (63, 208257), (141, 93051), (147, 89253), (189, 69419), (211, 62181), (329, 39879), (423, 31017), (441, 29751), (633, 20727), (987, 13293), (1269, 10339), (1323, 9917), (1477, 8883), (1899, 6909), (2303, 5697), (2961, 4431)]