20005447

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:112

約数の個数: 48

約数和(自身を含む): 28293120

約数和(自身を除く): 8287673

約数列:

[1, 7, 11, 17, 29, 31, 77, 119, 187, 203, 217, 289, 319, 341, 493, 527, 899, 1309, 2023, 2233, 2387, 3179, 3451, 3689, 5423, 5797, 6293, 8381, 8959, 9889, 15283, 22253, 37961, 40579, 58667, 62713, 69223, 92191, 98549, 106981, 168113, 259811, 645337, 689843, 1176791, 1818677, 2857921, 20005447]

約数ペア:

[(1, 20005447), (7, 2857921), (11, 1818677), (17, 1176791), (29, 689843), (31, 645337), (77, 259811), (119, 168113), (187, 106981), (203, 98549), (217, 92191), (289, 69223), (319, 62713), (341, 58667), (493, 40579), (527, 37961), (899, 22253), (1309, 15283), (2023, 9889), (2233, 8959), (2387, 8381), (3179, 6293), (3451, 5797), (3689, 5423)]