157768191

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^2\times {\mathrm{991}}^1$

素因数の和:1049

約数の個数: 54

約数和(自身を含む): 280062432

約数和(自身を除く): 122294241

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 361, 399, 441, 931, 991, 1083, 1197, 2527, 2793, 2973, 3249, 6937, 7581, 8379, 8919, 17689, 18829, 20811, 22743, 48559, 53067, 56487, 62433, 131803, 145677, 159201, 169461, 357751, 395409, 437031, 922621, 1073253, 1186227, 2504257, 2767863, 3219759, 7512771, 8303589, 17529799, 22538313, 52589397, 157768191]

約数ペア:

[(1, 157768191), (3, 52589397), (7, 22538313), (9, 17529799), (19, 8303589), (21, 7512771), (49, 3219759), (57, 2767863), (63, 2504257), (133, 1186227), (147, 1073253), (171, 922621), (361, 437031), (399, 395409), (441, 357751), (931, 169461), (991, 159201), (1083, 145677), (1197, 131803), (2527, 62433), (2793, 56487), (2973, 53067), (3249, 48559), (6937, 22743), (7581, 20811), (8379, 18829), (8919, 17689)]