20161911

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{87281}}^1$

素因数の和:87302

約数の個数: 16

約数和(自身を含む): 33516288

約数和(自身を除く): 13354377

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 87281, 261843, 610967, 960091, 1832901, 2880273, 6720637, 20161911]

約数ペア:

[(1, 20161911), (3, 6720637), (7, 2880273), (11, 1832901), (21, 960091), (33, 610967), (77, 261843), (231, 87281)]