18158553

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3313}}^1$

素因数の和:3358

約数の個数: 32

約数和(自身を含む): 31814400

約数和(自身を除く): 13655847

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 3313, 5481, 9939, 23191, 29817, 69573, 89451, 96077, 208719, 288231, 626157, 672539, 864693, 2017617, 2594079, 6052851, 18158553]

約数ペア:

[(1, 18158553), (3, 6052851), (7, 2594079), (9, 2017617), (21, 864693), (27, 672539), (29, 626157), (63, 288231), (87, 208719), (189, 96077), (203, 89451), (261, 69573), (609, 29817), (783, 23191), (1827, 9939), (3313, 5481)]