21118709

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{433}}^1$

素因数の和:620

約数の個数: 16

約数和(自身を含む): 23748480

約数和(自身を除く): 2629771

約数列:

[1, 17, 19, 151, 323, 433, 2567, 2869, 7361, 8227, 48773, 65383, 139859, 1111511, 1242277, 21118709]

約数ペア:

[(1, 21118709), (17, 1242277), (19, 1111511), (151, 139859), (323, 65383), (433, 48773), (2567, 8227), (2869, 7361)]