208528143

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{64301}}^1$

素因数の和:64374

約数の個数: 16

約数和(自身を含む): 296303616

約数和(自身を除く): 87775473

約数列:

[1, 3, 23, 47, 69, 141, 1081, 3243, 64301, 192903, 1478923, 3022147, 4436769, 9066441, 69509381, 208528143]

約数ペア:

[(1, 208528143), (3, 69509381), (23, 9066441), (47, 4436769), (69, 3022147), (141, 1478923), (1081, 192903), (3243, 64301)]