20178893

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{877}}^1$

素因数の和:1076

約数の個数: 16

約数和(自身を含む): 24443520

約数和(自身を除く): 4264627

約数列:

[1, 7, 19, 133, 173, 877, 1211, 3287, 6139, 16663, 23009, 116641, 151721, 1062047, 2882699, 20178893]

約数ペア:

[(1, 20178893), (7, 2882699), (19, 1062047), (133, 151721), (173, 116641), (877, 23009), (1211, 16663), (3287, 6139)]