128512089

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{26891}}^1$

素因数の和:26962

約数の個数: 20

約数和(自身を含む): 195235920

約数和(自身を除く): 66723831

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 4779, 26891, 80673, 242019, 726057, 1586569, 2178171, 4759707, 14279121, 42837363, 128512089]

約数ペア:

[(1, 128512089), (3, 42837363), (9, 14279121), (27, 4759707), (59, 2178171), (81, 1586569), (177, 726057), (531, 242019), (1593, 80673), (4779, 26891)]