971781381

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{279007}}^1$

素因数の和:279062

約数の個数: 20

約数和(自身を含む): 1485438592

約数和(自身を除く): 513657211

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 279007, 837021, 2511063, 7533189, 11997301, 22599567, 35991903, 107975709, 323927127, 971781381]

約数ペア:

[(1, 971781381), (3, 323927127), (9, 107975709), (27, 35991903), (43, 22599567), (81, 11997301), (129, 7533189), (387, 2511063), (1161, 837021), (3483, 279007)]