219310090

素因数分解:

$2^1\times 5^1\times {\mathrm{997}}^1\times {\mathrm{21997}}^1$

素因数の和:23001

約数の個数: 16

約数和(自身を含む): 395172072

約数和(自身を除く): 175861982

約数列:

[1, 2, 5, 10, 997, 1994, 4985, 9970, 21997, 43994, 109985, 219970, 21931009, 43862018, 109655045, 219310090]

約数ペア:

[(1, 219310090), (2, 109655045), (5, 43862018), (10, 21931009), (997, 219970), (1994, 109985), (4985, 43994), (9970, 21997)]