261567129

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{68491}}^1$

素因数の和:68580

約数の個数: 16

約数和(自身を含む): 372596480

約数和(自身を除く): 111029351

約数列:

[1, 3, 19, 57, 67, 201, 1273, 3819, 68491, 205473, 1301329, 3903987, 4588897, 13766691, 87189043, 261567129]

約数ペア:

[(1, 261567129), (3, 87189043), (19, 13766691), (57, 4588897), (67, 3903987), (201, 1301329), (1273, 205473), (3819, 68491)]