21137458

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{271}}^1\times {\mathrm{661}}^1$

素因数の和:993

約数の個数: 16

約数和(自身を含む): 32411520

約数和(自身を除く): 11274062

約数列:

[1, 2, 59, 118, 271, 542, 661, 1322, 15989, 31978, 38999, 77998, 179131, 358262, 10568729, 21137458]

約数ペア:

[(1, 21137458), (2, 10568729), (59, 358262), (118, 179131), (271, 77998), (542, 38999), (661, 31978), (1322, 15989)]