289893121

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 352059392

約数和(自身を除く): 62166271

約数列:

[1, 7, 31, 67, 127, 157, 217, 469, 889, 1099, 2077, 3937, 4867, 8509, 10519, 14539, 19939, 27559, 34069, 59563, 73633, 139573, 263779, 326089, 618109, 1335913, 1846453, 2282623, 4326763, 9351391, 41413303, 289893121]

約数ペア:

[(1, 289893121), (7, 41413303), (31, 9351391), (67, 4326763), (127, 2282623), (157, 1846453), (217, 1335913), (469, 618109), (889, 326089), (1099, 263779), (2077, 139573), (3937, 73633), (4867, 59563), (8509, 34069), (10519, 27559), (14539, 19939)]