18897329

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{661}}^1$

素因数の和:808

約数の個数: 16

約数和(自身を含む): 21734784

約数和(自身を除く): 2837455

約数列:

[1, 11, 23, 113, 253, 661, 1243, 2599, 7271, 15203, 28589, 74693, 167233, 821623, 1717939, 18897329]

約数ペア:

[(1, 18897329), (11, 1717939), (23, 821623), (113, 167233), (253, 74693), (661, 28589), (1243, 15203), (2599, 7271)]