18985187

素因数分解:

${\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:458

約数の個数: 16

約数和(自身を含む): 21111552

約数和(自身を除く): 2126365

約数列:

[1, 13, 67, 71, 307, 871, 923, 3991, 4757, 20569, 21797, 61841, 267397, 283361, 1460399, 18985187]

約数ペア:

[(1, 18985187), (13, 1460399), (67, 283361), (71, 267397), (307, 61841), (871, 21797), (923, 20569), (3991, 4757)]