87840987

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{31723}}^1$

素因数の和:31810

約数の個数: 16

約数和(自身を含む): 127911168

約数和(自身を除く): 40070181

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 31723, 95169, 412399, 1237197, 2252333, 6756999, 29280329, 87840987]

約数ペア:

[(1, 87840987), (3, 29280329), (13, 6756999), (39, 2252333), (71, 1237197), (213, 412399), (923, 95169), (2769, 31723)]