81972317

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{2351}}^1$

素因数の和:2668

約数の個数: 16

約数和(自身を含む): 99574272

約数和(自身を除く): 17601955

約数列:

[1, 7, 17, 119, 293, 2051, 2351, 4981, 16457, 34867, 39967, 279769, 688843, 4821901, 11710331, 81972317]

約数ペア:

[(1, 81972317), (7, 11710331), (17, 4821901), (119, 688843), (293, 279769), (2051, 39967), (2351, 34867), (4981, 16457)]