21441256

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{829}}^1$

素因数の和:949

約数の個数: 32

約数和(自身を含む): 41682600

約数和(自身を除く): 20241344

約数列:

[1, 2, 4, 8, 53, 61, 106, 122, 212, 244, 424, 488, 829, 1658, 3233, 3316, 6466, 6632, 12932, 25864, 43937, 50569, 87874, 101138, 175748, 202276, 351496, 404552, 2680157, 5360314, 10720628, 21441256]

約数ペア:

[(1, 21441256), (2, 10720628), (4, 5360314), (8, 2680157), (53, 404552), (61, 351496), (106, 202276), (122, 175748), (212, 101138), (244, 87874), (424, 50569), (488, 43937), (829, 25864), (1658, 12932), (3233, 6632), (3316, 6466)]