81049269

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2861}}^1$

素因数の和:2961

約数の個数: 32

約数和(自身を含む): 131880960

約数和(自身を除く): 50831691

約数列:

[1, 3, 7, 19, 21, 57, 71, 133, 213, 399, 497, 1349, 1491, 2861, 4047, 8583, 9443, 20027, 28329, 54359, 60081, 163077, 203131, 380513, 609393, 1141539, 1421917, 3859489, 4265751, 11578467, 27016423, 81049269]

約数ペア:

[(1, 81049269), (3, 27016423), (7, 11578467), (19, 4265751), (21, 3859489), (57, 1421917), (71, 1141539), (133, 609393), (213, 380513), (399, 203131), (497, 163077), (1349, 60081), (1491, 54359), (2861, 28329), (4047, 20027), (8583, 9443)]