21150339

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{613}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 33951744

約数和(自身を除く): 12801405

約数列:

[1, 3, 7, 21, 31, 53, 93, 159, 217, 371, 613, 651, 1113, 1643, 1839, 4291, 4929, 11501, 12873, 19003, 32489, 34503, 57009, 97467, 133021, 227423, 399063, 682269, 1007159, 3021477, 7050113, 21150339]

約数ペア:

[(1, 21150339), (3, 7050113), (7, 3021477), (21, 1007159), (31, 682269), (53, 399063), (93, 227423), (159, 133021), (217, 97467), (371, 57009), (613, 34503), (651, 32489), (1113, 19003), (1643, 12873), (1839, 11501), (4291, 4929)]