21289334

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:316

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14635786

約数列:

[1, 2, 11, 22, 83, 89, 131, 166, 178, 262, 913, 979, 1441, 1826, 1958, 2882, 7387, 10873, 11659, 14774, 21746, 23318, 81257, 119603, 128249, 162514, 239206, 256498, 967697, 1935394, 10644667, 21289334]

約数ペア:

[(1, 21289334), (2, 10644667), (11, 1935394), (22, 967697), (83, 256498), (89, 239206), (131, 162514), (166, 128249), (178, 119603), (262, 81257), (913, 23318), (979, 21746), (1441, 14774), (1826, 11659), (1958, 10873), (2882, 7387)]