21558068

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 44755200

約数和(自身を除く): 23197132

約数列:

[1, 2, 4, 7, 14, 28, 53, 73, 106, 146, 199, 212, 292, 371, 398, 511, 742, 796, 1022, 1393, 1484, 2044, 2786, 3869, 5572, 7738, 10547, 14527, 15476, 21094, 27083, 29054, 42188, 54166, 58108, 73829, 101689, 108332, 147658, 203378, 295316, 406756, 769931, 1539862, 3079724, 5389517, 10779034, 21558068]

約数ペア:

[(1, 21558068), (2, 10779034), (4, 5389517), (7, 3079724), (14, 1539862), (28, 769931), (53, 406756), (73, 295316), (106, 203378), (146, 147658), (199, 108332), (212, 101689), (292, 73829), (371, 58108), (398, 54166), (511, 42188), (742, 29054), (796, 27083), (1022, 21094), (1393, 15476), (1484, 14527), (2044, 10547), (2786, 7738), (3869, 5572)]