7173621

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{461}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 13453440

約数和(自身を除く): 6279819

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 461, 741, 819, 1197, 1383, 1729, 2223, 3227, 4149, 5187, 5993, 8759, 9681, 15561, 17979, 26277, 29043, 41951, 53937, 61313, 78831, 113867, 125853, 183939, 341601, 377559, 551817, 797069, 1024803, 2391207, 7173621]

約数ペア:

[(1, 7173621), (3, 2391207), (7, 1024803), (9, 797069), (13, 551817), (19, 377559), (21, 341601), (39, 183939), (57, 125853), (63, 113867), (91, 78831), (117, 61313), (133, 53937), (171, 41951), (247, 29043), (273, 26277), (399, 17979), (461, 15561), (741, 9681), (819, 8759), (1197, 5993), (1383, 5187), (1729, 4149), (2223, 3227)]