13021897

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:301

約数の個数: 24

約数和(自身を含む): 16251840

約数和(自身を除く): 3229943

約数列:

[1, 7, 19, 49, 71, 133, 197, 497, 931, 1349, 1379, 3479, 3743, 9443, 9653, 13987, 26201, 66101, 97909, 183407, 265753, 685363, 1860271, 13021897]

約数ペア:

[(1, 13021897), (7, 1860271), (19, 685363), (49, 265753), (71, 183407), (133, 97909), (197, 66101), (497, 26201), (931, 13987), (1349, 9653), (1379, 9443), (3479, 3743)]