20862317

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{463}}^1$

素因数の和:668

約数の個数: 16

約数和(自身を含む): 24632832

約数和(自身を除く): 3770515

約数列:

[1, 7, 41, 157, 287, 463, 1099, 3241, 6437, 18983, 45059, 72691, 132881, 508837, 2980331, 20862317]

約数ペア:

[(1, 20862317), (7, 2980331), (41, 508837), (157, 132881), (287, 72691), (463, 45059), (1099, 18983), (3241, 6437)]