19551483

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 64

約数和(自身を含む): 35389440

約数和(自身を除く): 15837957

約数列:

[1, 3, 7, 9, 21, 27, 31, 47, 63, 71, 93, 141, 189, 213, 217, 279, 329, 423, 497, 639, 651, 837, 987, 1269, 1457, 1491, 1917, 1953, 2201, 2961, 3337, 4371, 4473, 5859, 6603, 8883, 10011, 10199, 13113, 13419, 15407, 19809, 23359, 30033, 30597, 39339, 46221, 59427, 70077, 90099, 91791, 103447, 138663, 210231, 275373, 310341, 415989, 630693, 724129, 931023, 2172387, 2793069, 6517161, 19551483]

約数ペア:

[(1, 19551483), (3, 6517161), (7, 2793069), (9, 2172387), (21, 931023), (27, 724129), (31, 630693), (47, 415989), (63, 310341), (71, 275373), (93, 210231), (141, 138663), (189, 103447), (213, 91791), (217, 90099), (279, 70077), (329, 59427), (423, 46221), (497, 39339), (639, 30597), (651, 30033), (837, 23359), (987, 19809), (1269, 15407), (1457, 13419), (1491, 13113), (1917, 10199), (1953, 10011), (2201, 8883), (2961, 6603), (3337, 5859), (4371, 4473)]