2156164018

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{390751}}^1$

素因数の和:390873

約数の個数: 16

約数和(自身を含む): 3376097280

約数和(自身を除く): 1219933262

約数列:

[1, 2, 31, 62, 89, 178, 2759, 5518, 390751, 781502, 12113281, 24226562, 34776839, 69553678, 1078082009, 2156164018]

約数ペア:

[(1, 2156164018), (2, 1078082009), (31, 69553678), (62, 34776839), (89, 24226562), (178, 12113281), (2759, 781502), (5518, 390751)]