21871390

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{95093}}^1$

素因数の和:95123

約数の個数: 16

約数和(自身を含む): 41080608

約数和(自身を除く): 19209218

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 95093, 190186, 475465, 950930, 2187139, 4374278, 10935695, 21871390]

約数ペア:

[(1, 21871390), (2, 10935695), (5, 4374278), (10, 2187139), (23, 950930), (46, 475465), (115, 190186), (230, 95093)]