21667311

素因数分解:

$3^3\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:133

約数の個数: 48

約数和(自身を含む): 35303520

約数和(自身を除く): 13636209

約数列:

[1, 3, 9, 23, 27, 37, 41, 69, 111, 123, 207, 333, 369, 529, 621, 851, 943, 999, 1107, 1517, 1587, 2553, 2829, 4551, 4761, 7659, 8487, 13653, 14283, 19573, 21689, 22977, 25461, 34891, 40959, 58719, 65067, 104673, 176157, 195201, 314019, 528471, 585603, 802493, 942057, 2407479, 7222437, 21667311]

約数ペア:

[(1, 21667311), (3, 7222437), (9, 2407479), (23, 942057), (27, 802493), (37, 585603), (41, 528471), (69, 314019), (111, 195201), (123, 176157), (207, 104673), (333, 65067), (369, 58719), (529, 40959), (621, 34891), (851, 25461), (943, 22977), (999, 21689), (1107, 19573), (1517, 14283), (1587, 13653), (2553, 8487), (2829, 7659), (4551, 4761)]