21284901

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{12647}}^1$

素因数の和:12681

約数の個数: 24

約数和(自身を含む): 35515584

約数和(自身を除く): 14230683

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 561, 1683, 12647, 37941, 113823, 139117, 214999, 417351, 644997, 1252053, 1934991, 2364989, 7094967, 21284901]

約数ペア:

[(1, 21284901), (3, 7094967), (9, 2364989), (11, 1934991), (17, 1252053), (33, 644997), (51, 417351), (99, 214999), (153, 139117), (187, 113823), (561, 37941), (1683, 12647)]