21027129

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 31595520

約数和(自身を除く): 10568391

約数列:

[1, 3, 19, 23, 43, 57, 69, 129, 373, 437, 817, 989, 1119, 1311, 2451, 2967, 7087, 8579, 16039, 18791, 21261, 25737, 48117, 56373, 163001, 304741, 368897, 489003, 914223, 1106691, 7009043, 21027129]

約数ペア:

[(1, 21027129), (3, 7009043), (19, 1106691), (23, 914223), (43, 489003), (57, 368897), (69, 304741), (129, 163001), (373, 56373), (437, 48117), (817, 25737), (989, 21261), (1119, 18791), (1311, 16039), (2451, 8579), (2967, 7087)]