1216911891

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{647}}^1\times {\mathrm{1663}}^1$

素因数の和:2355

約数の個数: 32

約数和(自身を含む): 1811496960

約数和(自身を除く): 594585069

約数列:

[1, 3, 13, 29, 39, 87, 377, 647, 1131, 1663, 1941, 4989, 8411, 18763, 21619, 25233, 48227, 56289, 64857, 144681, 243919, 626951, 731757, 1075961, 1880853, 3227883, 13987493, 31202869, 41962479, 93608607, 405637297, 1216911891]

約数ペア:

[(1, 1216911891), (3, 405637297), (13, 93608607), (29, 41962479), (39, 31202869), (87, 13987493), (377, 3227883), (647, 1880853), (1131, 1075961), (1663, 731757), (1941, 626951), (4989, 243919), (8411, 144681), (18763, 64857), (21619, 56289), (25233, 48227)]