27978639

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{4751}}^1$

素因数の和:4918

約数の個数: 16

約数和(自身を含む): 40449024

約数和(自身を除く): 12470385

約数列:

[1, 3, 13, 39, 151, 453, 1963, 4751, 5889, 14253, 61763, 185289, 717401, 2152203, 9326213, 27978639]

約数ペア:

[(1, 27978639), (3, 9326213), (13, 2152203), (39, 717401), (151, 185289), (453, 61763), (1963, 14253), (4751, 5889)]