71317981

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:473

約数の個数: 24

約数和(自身を含む): 86120160

約数和(自身を除く): 14802179

約数列:

[1, 7, 37, 49, 139, 259, 283, 973, 1813, 1981, 5143, 6811, 10471, 13867, 36001, 39337, 73297, 252007, 275359, 513079, 1455469, 1927513, 10188283, 71317981]

約数ペア:

[(1, 71317981), (7, 10188283), (37, 1927513), (49, 1455469), (139, 513079), (259, 275359), (283, 252007), (973, 73297), (1813, 39337), (1981, 36001), (5143, 13867), (6811, 10471)]