20806591689

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{1409}}^1\times {\mathrm{42071}}^1$

素因数の和:43502

約数の個数: 32

約数和(自身を含む): 33220051200

約数和(自身を除く): 12413459511

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 1409, 4227, 12681, 18317, 38043, 42071, 54951, 126213, 164853, 378639, 494559, 546923, 1135917, 1640769, 4922307, 14766921, 59278039, 177834117, 533502351, 770614507, 1600507053, 2311843521, 6935530563, 20806591689]

約数ペア:

[(1, 20806591689), (3, 6935530563), (9, 2311843521), (13, 1600507053), (27, 770614507), (39, 533502351), (117, 177834117), (351, 59278039), (1409, 14766921), (4227, 4922307), (12681, 1640769), (18317, 1135917), (38043, 546923), (42071, 494559), (54951, 378639), (126213, 164853)]