289778931

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:533

約数の個数: 64

約数和(自身を含む): 484928640

約数和(自身を除く): 195149709

約数列:

[1, 3, 9, 13, 27, 37, 39, 53, 111, 117, 159, 333, 351, 421, 477, 481, 689, 999, 1263, 1431, 1443, 1961, 2067, 3789, 4329, 5473, 5883, 6201, 11367, 12987, 15577, 16419, 17649, 18603, 22313, 25493, 46731, 49257, 52947, 66939, 76479, 140193, 147771, 200817, 202501, 229437, 290069, 420579, 602451, 607503, 688311, 825581, 870207, 1822509, 2476743, 2610621, 5467527, 7430229, 7831863, 10732553, 22290687, 32197659, 96592977, 289778931]

約数ペア:

[(1, 289778931), (3, 96592977), (9, 32197659), (13, 22290687), (27, 10732553), (37, 7831863), (39, 7430229), (53, 5467527), (111, 2610621), (117, 2476743), (159, 1822509), (333, 870207), (351, 825581), (421, 688311), (477, 607503), (481, 602451), (689, 420579), (999, 290069), (1263, 229437), (1431, 202501), (1443, 200817), (1961, 147771), (2067, 140193), (3789, 76479), (4329, 66939), (5473, 52947), (5883, 49257), (6201, 46731), (11367, 25493), (12987, 22313), (15577, 18603), (16419, 17649)]