21000201669

素因数分解:

$3^7\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{2087}}^1$

素因数の和:2258

約数の個数: 64

約数和(自身を含む): 32544737280

約数和(自身を除く): 11544535611

約数列:

[1, 3, 9, 27, 43, 81, 107, 129, 243, 321, 387, 729, 963, 1161, 2087, 2187, 2889, 3483, 4601, 6261, 8667, 10449, 13803, 18783, 26001, 31347, 41409, 56349, 78003, 89741, 94041, 124227, 169047, 223309, 234009, 269223, 372681, 507141, 669927, 807669, 1118043, 1521423, 2009781, 2423007, 3354129, 4564269, 6029343, 7269021, 9602287, 10062387, 18088029, 21807063, 28806861, 54264087, 65421189, 86420583, 162792261, 196263567, 259261749, 488376783, 777785247, 2333355741, 7000067223, 21000201669]

約数ペア:

[(1, 21000201669), (3, 7000067223), (9, 2333355741), (27, 777785247), (43, 488376783), (81, 259261749), (107, 196263567), (129, 162792261), (243, 86420583), (321, 65421189), (387, 54264087), (729, 28806861), (963, 21807063), (1161, 18088029), (2087, 10062387), (2187, 9602287), (2889, 7269021), (3483, 6029343), (4601, 4564269), (6261, 3354129), (8667, 2423007), (10449, 2009781), (13803, 1521423), (18783, 1118043), (26001, 807669), (31347, 669927), (41409, 507141), (56349, 372681), (78003, 269223), (89741, 234009), (94041, 223309), (124227, 169047)]