7945209

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{2087}}^1$

素因数の和:2146

約数の個数: 20

約数和(自身を含む): 12127104

約数和(自身を除く): 4181895

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 2087, 3807, 6261, 18783, 56349, 98089, 169047, 294267, 882801, 2648403, 7945209]

約数ペア:

[(1, 7945209), (3, 2648403), (9, 882801), (27, 294267), (47, 169047), (81, 98089), (141, 56349), (423, 18783), (1269, 6261), (2087, 3807)]