21187593

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 37679616

約数和(自身を除く): 16492023

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 73, 119, 153, 219, 271, 357, 511, 657, 813, 1071, 1241, 1533, 1897, 2439, 3723, 4599, 4607, 5691, 8687, 11169, 13821, 17073, 19783, 26061, 32249, 41463, 59349, 78183, 96747, 138481, 178047, 290241, 336311, 415443, 1008933, 1246329, 2354177, 3026799, 7062531, 21187593]

約数ペア:

[(1, 21187593), (3, 7062531), (7, 3026799), (9, 2354177), (17, 1246329), (21, 1008933), (51, 415443), (63, 336311), (73, 290241), (119, 178047), (153, 138481), (219, 96747), (271, 78183), (357, 59349), (511, 41463), (657, 32249), (813, 26061), (1071, 19783), (1241, 17073), (1533, 13821), (1897, 11169), (2439, 8687), (3723, 5691), (4599, 4607)]