19975647

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{1721}}^1$

素因数の和:1850

約数の個数: 16

約数和(自身を含む): 27524448

約数和(自身を除く): 7548801

約数列:

[1, 3, 53, 73, 159, 219, 1721, 3869, 5163, 11607, 91213, 125633, 273639, 376899, 6658549, 19975647]

約数ペア:

[(1, 19975647), (3, 6658549), (53, 376899), (73, 273639), (159, 125633), (219, 91213), (1721, 11607), (3869, 5163)]