19645857518

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{2621}}^1$

素因数の和:2889

約数の個数: 64

約数和(自身を含む): 35020187136

約数和(自身を除く): 15374329618

約数列:

[1, 2, 7, 14, 61, 67, 122, 131, 134, 262, 427, 469, 854, 917, 938, 1834, 2621, 4087, 5242, 7991, 8174, 8777, 15982, 17554, 18347, 28609, 36694, 55937, 57218, 61439, 111874, 122878, 159881, 175607, 319762, 343351, 351214, 535397, 686702, 1070794, 1119167, 1229249, 2238334, 2403457, 2458498, 3747779, 4806914, 7495558, 10712027, 20944411, 21424054, 23004517, 41888822, 46009034, 74984189, 146610877, 149968378, 161031619, 293221754, 322063238, 1403275537, 2806551074, 9822928759, 19645857518]

約数ペア:

[(1, 19645857518), (2, 9822928759), (7, 2806551074), (14, 1403275537), (61, 322063238), (67, 293221754), (122, 161031619), (131, 149968378), (134, 146610877), (262, 74984189), (427, 46009034), (469, 41888822), (854, 23004517), (917, 21424054), (938, 20944411), (1834, 10712027), (2621, 7495558), (4087, 4806914), (5242, 3747779), (7991, 2458498), (8174, 2403457), (8777, 2238334), (15982, 1229249), (17554, 1119167), (18347, 1070794), (28609, 686702), (36694, 535397), (55937, 351214), (57218, 343351), (61439, 319762), (111874, 175607), (122878, 159881)]