2158778817

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{907}}^1\times {\mathrm{6781}}^1$

素因数の和:7710

約数の個数: 32

約数和(自身を含む): 3448511360

約数和(自身を除く): 1289732543

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 907, 2721, 6781, 8163, 11791, 20343, 24489, 35373, 61029, 88153, 106119, 183087, 264459, 318357, 793377, 2380131, 6150367, 18451101, 55353303, 79954771, 166059909, 239864313, 719592939, 2158778817]

約数ペア:

[(1, 2158778817), (3, 719592939), (9, 239864313), (13, 166059909), (27, 79954771), (39, 55353303), (117, 18451101), (351, 6150367), (907, 2380131), (2721, 793377), (6781, 318357), (8163, 264459), (11791, 183087), (20343, 106119), (24489, 88153), (35373, 61029)]