20975565478

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1579}}^1\times {\mathrm{23143}}^1$

素因数の和:24772

約数の個数: 32

約数和(自身を含む): 36860060160

約数和(自身を除く): 15884494682

約数列:

[1, 2, 7, 14, 41, 82, 287, 574, 1579, 3158, 11053, 22106, 23143, 46286, 64739, 129478, 162001, 324002, 453173, 906346, 948863, 1897726, 6642041, 13284082, 36542797, 73085594, 255799579, 511599158, 1498254677, 2996509354, 10487782739, 20975565478]

約数ペア:

[(1, 20975565478), (2, 10487782739), (7, 2996509354), (14, 1498254677), (41, 511599158), (82, 255799579), (287, 73085594), (574, 36542797), (1579, 13284082), (3158, 6642041), (11053, 1897726), (22106, 948863), (23143, 906346), (46286, 453173), (64739, 324002), (129478, 162001)]