308889693

素因数分解:

$3^7\times 7^1\times {\mathrm{20177}}^1$

素因数の和:20205

約数の個数: 32

約数和(自身を含む): 529470720

約数和(自身を除く): 220581027

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 2187, 5103, 15309, 20177, 60531, 141239, 181593, 423717, 544779, 1271151, 1634337, 3813453, 4903011, 11440359, 14709033, 34321077, 44127099, 102963231, 308889693]

約数ペア:

[(1, 308889693), (3, 102963231), (7, 44127099), (9, 34321077), (21, 14709033), (27, 11440359), (63, 4903011), (81, 3813453), (189, 1634337), (243, 1271151), (567, 544779), (729, 423717), (1701, 181593), (2187, 141239), (5103, 60531), (15309, 20177)]