131221106

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{8443}}^1$

素因数の和:8873

約数の個数: 16

約数和(自身を含む): 207722400

約数和(自身を除く): 76501294

約数列:

[1, 2, 19, 38, 409, 818, 7771, 8443, 15542, 16886, 160417, 320834, 3453187, 6906374, 65610553, 131221106]

約数ペア:

[(1, 131221106), (2, 65610553), (19, 6906374), (38, 3453187), (409, 320834), (818, 160417), (7771, 16886), (8443, 15542)]