21522514

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14402606

約数列:

[1, 2, 13, 26, 71, 89, 131, 142, 178, 262, 923, 1157, 1703, 1846, 2314, 3406, 6319, 9301, 11659, 12638, 18602, 23318, 82147, 120913, 151567, 164294, 241826, 303134, 827789, 1655578, 10761257, 21522514]

約数ペア:

[(1, 21522514), (2, 10761257), (13, 1655578), (26, 827789), (71, 303134), (89, 241826), (131, 164294), (142, 151567), (178, 120913), (262, 82147), (923, 23318), (1157, 18602), (1703, 12638), (1846, 11659), (2314, 9301), (3406, 6319)]