209660421

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{69401}}^1$

素因数の和:69476

約数の個数: 16

約数和(自身を含む): 299816640

約数和(自身を除く): 90156219

約数列:

[1, 3, 19, 53, 57, 159, 1007, 3021, 69401, 208203, 1318619, 3678253, 3955857, 11034759, 69886807, 209660421]

約数ペア:

[(1, 209660421), (3, 69886807), (19, 11034759), (53, 3955857), (57, 3678253), (159, 1318619), (1007, 208203), (3021, 69401)]