18991159

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2477}}^1$

素因数の和:2546

約数の個数: 16

約数和(自身を含む): 22480416

約数和(自身を除く): 3489257

約数列:

[1, 11, 17, 41, 187, 451, 697, 2477, 7667, 27247, 42109, 101557, 463199, 1117127, 1726469, 18991159]

約数ペア:

[(1, 18991159), (11, 1726469), (17, 1117127), (41, 463199), (187, 101557), (451, 42109), (697, 27247), (2477, 7667)]