19978179

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{30133}}^1$

素因数の和:30166

約数の個数: 16

約数和(自身を含む): 30375072

約数和(自身を除く): 10396893

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 30133, 90399, 391729, 512261, 1175187, 1536783, 6659393, 19978179]

約数ペア:

[(1, 19978179), (3, 6659393), (13, 1536783), (17, 1175187), (39, 512261), (51, 391729), (221, 90399), (663, 30133)]