81425253

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{298261}}^1$

素因数の和:298284

約数の個数: 16

約数和(自身を含む): 133621376

約数和(自身を除く): 52196123

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 298261, 894783, 2087827, 3877393, 6263481, 11632179, 27141751, 81425253]

約数ペア:

[(1, 81425253), (3, 27141751), (7, 11632179), (13, 6263481), (21, 3877393), (39, 2087827), (91, 894783), (273, 298261)]