9888879

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:160

約数の個数: 64

約数和(自身を含む): 18385920

約数和(自身を除く): 8497041

約数列:

[1, 3, 7, 11, 13, 21, 33, 37, 39, 77, 89, 91, 111, 143, 231, 259, 267, 273, 407, 429, 481, 623, 777, 979, 1001, 1157, 1221, 1443, 1869, 2849, 2937, 3003, 3293, 3367, 3471, 5291, 6853, 8099, 8547, 9879, 10101, 12727, 15873, 20559, 23051, 24297, 36223, 37037, 38181, 42809, 69153, 89089, 108669, 111111, 128427, 253561, 267267, 299663, 470899, 760683, 898989, 1412697, 3296293, 9888879]

約数ペア:

[(1, 9888879), (3, 3296293), (7, 1412697), (11, 898989), (13, 760683), (21, 470899), (33, 299663), (37, 267267), (39, 253561), (77, 128427), (89, 111111), (91, 108669), (111, 89089), (143, 69153), (231, 42809), (259, 38181), (267, 37037), (273, 36223), (407, 24297), (429, 23051), (481, 20559), (623, 15873), (777, 12727), (979, 10101), (1001, 9879), (1157, 8547), (1221, 8099), (1443, 6853), (1869, 5291), (2849, 3471), (2937, 3367), (3003, 3293)]