21095752

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 40622400

約数和(自身を除く): 19526648

約数列:

[1, 2, 4, 8, 61, 122, 139, 244, 278, 311, 488, 556, 622, 1112, 1244, 2488, 8479, 16958, 18971, 33916, 37942, 43229, 67832, 75884, 86458, 151768, 172916, 345832, 2636969, 5273938, 10547876, 21095752]

約数ペア:

[(1, 21095752), (2, 10547876), (4, 5273938), (8, 2636969), (61, 345832), (122, 172916), (139, 151768), (244, 86458), (278, 75884), (311, 67832), (488, 43229), (556, 37942), (622, 33916), (1112, 18971), (1244, 16958), (2488, 8479)]