18528731

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2066

約数の個数: 16

約数和(自身を含む): 21504000

約数和(自身を除く): 2975269

約数列:

[1, 13, 23, 31, 299, 403, 713, 1999, 9269, 25987, 45977, 61969, 597701, 805597, 1425287, 18528731]

約数ペア:

[(1, 18528731), (13, 1425287), (23, 805597), (31, 597701), (299, 61969), (403, 45977), (713, 25987), (1999, 9269)]