18840514

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 38154240

約数和(自身を除く): 19313726

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 47, 77, 94, 133, 137, 154, 209, 266, 274, 329, 418, 517, 658, 893, 959, 1034, 1463, 1507, 1786, 1918, 2603, 2926, 3014, 3619, 5206, 6251, 6439, 7238, 9823, 10549, 12502, 12878, 18221, 19646, 21098, 28633, 36442, 45073, 57266, 68761, 70829, 90146, 122341, 137522, 141658, 200431, 244682, 400862, 495803, 856387, 991606, 1345751, 1712774, 2691502, 9420257, 18840514]

約数ペア:

[(1, 18840514), (2, 9420257), (7, 2691502), (11, 1712774), (14, 1345751), (19, 991606), (22, 856387), (38, 495803), (47, 400862), (77, 244682), (94, 200431), (133, 141658), (137, 137522), (154, 122341), (209, 90146), (266, 70829), (274, 68761), (329, 57266), (418, 45073), (517, 36442), (658, 28633), (893, 21098), (959, 19646), (1034, 18221), (1463, 12878), (1507, 12502), (1786, 10549), (1918, 9823), (2603, 7238), (2926, 6439), (3014, 6251), (3619, 5206)]