206820019

素因数分解:

$7^1\times {\mathrm{151}}^1\times {\mathrm{389}}^1\times {\mathrm{503}}^1$

素因数の和:1050

約数の個数: 16

約数和(自身を含む): 239016960

約数和(自身を除く): 32196941

約数列:

[1, 7, 151, 389, 503, 1057, 2723, 3521, 58739, 75953, 195667, 411173, 531671, 1369669, 29545717, 206820019]

約数ペア:

[(1, 206820019), (7, 29545717), (151, 1369669), (389, 531671), (503, 411173), (1057, 195667), (2723, 75953), (3521, 58739)]