20553513

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{2143}}^1$

素因数の和:2308

約数の個数: 16

約数和(自身を含む): 28815360

約数和(自身を除く): 8261847

約数列:

[1, 3, 23, 69, 139, 417, 2143, 3197, 6429, 9591, 49289, 147867, 297877, 893631, 6851171, 20553513]

約数ペア:

[(1, 20553513), (3, 6851171), (23, 893631), (69, 297877), (139, 147867), (417, 49289), (2143, 9591), (3197, 6429)]