21436009

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{3041}}^1$

素因数の和:3120

約数の個数: 16

約数和(自身を含む): 26282880

約数和(自身を除く): 4846871

約数列:

[1, 7, 19, 53, 133, 371, 1007, 3041, 7049, 21287, 57779, 161173, 404453, 1128211, 3062287, 21436009]

約数ペア:

[(1, 21436009), (7, 3062287), (19, 1128211), (53, 404453), (133, 161173), (371, 57779), (1007, 21287), (3041, 7049)]