19933774

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{547}}^1$

素因数の和:712

約数の個数: 32

約数和(自身を含む): 36299520

約数和(自身を除く): 16365746

約数列:

[1, 2, 7, 14, 19, 38, 133, 137, 266, 274, 547, 959, 1094, 1918, 2603, 3829, 5206, 7658, 10393, 18221, 20786, 36442, 72751, 74939, 145502, 149878, 524573, 1049146, 1423841, 2847682, 9966887, 19933774]

約数ペア:

[(1, 19933774), (2, 9966887), (7, 2847682), (14, 1423841), (19, 1049146), (38, 524573), (133, 149878), (137, 145502), (266, 74939), (274, 72751), (547, 36442), (959, 20786), (1094, 18221), (1918, 10393), (2603, 7658), (3829, 5206)]