81263547

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{42391}}^1$

素因数の和:42471

約数の個数: 16

約数和(自身を含む): 122088960

約数和(自身を除く): 40825413

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 42391, 127173, 381519, 1144557, 3009761, 9029283, 27087849, 81263547]

約数ペア:

[(1, 81263547), (3, 27087849), (9, 9029283), (27, 3009761), (71, 1144557), (213, 381519), (639, 127173), (1917, 42391)]