28215516

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1307}}^1$

素因数の和:1578

約数の個数: 48

約数和(自身を含む): 75591936

約数和(自身を除く): 47376420

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 257, 514, 771, 1028, 1307, 1542, 1799, 2614, 3084, 3598, 3921, 5228, 5397, 7196, 7842, 9149, 10794, 15684, 18298, 21588, 27447, 36596, 54894, 109788, 335899, 671798, 1007697, 1343596, 2015394, 2351293, 4030788, 4702586, 7053879, 9405172, 14107758, 28215516]

約数ペア:

[(1, 28215516), (2, 14107758), (3, 9405172), (4, 7053879), (6, 4702586), (7, 4030788), (12, 2351293), (14, 2015394), (21, 1343596), (28, 1007697), (42, 671798), (84, 335899), (257, 109788), (514, 54894), (771, 36596), (1028, 27447), (1307, 21588), (1542, 18298), (1799, 15684), (2614, 10794), (3084, 9149), (3598, 7842), (3921, 7196), (5228, 5397)]