291505197

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{379}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 414996480

約数和(自身を除く): 123491283

約数列:

[1, 3, 23, 69, 71, 157, 213, 379, 471, 1137, 1633, 3611, 4899, 8717, 10833, 11147, 26151, 26909, 33441, 59503, 80727, 178509, 256381, 618907, 769143, 1368569, 1856721, 4105707, 4224713, 12674139, 97168399, 291505197]

約数ペア:

[(1, 291505197), (3, 97168399), (23, 12674139), (69, 4224713), (71, 4105707), (157, 1856721), (213, 1368569), (379, 769143), (471, 618907), (1137, 256381), (1633, 178509), (3611, 80727), (4899, 59503), (8717, 33441), (10833, 26909), (11147, 26151)]