209213978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{177601}}^1$

素因数の和:177653

約数の個数: 16

約数和(自身を含む): 340995840

約数和(自身を除く): 131781862

約数列:

[1, 2, 19, 31, 38, 62, 589, 1178, 177601, 355202, 3374419, 5505631, 6748838, 11011262, 104606989, 209213978]

約数ペア:

[(1, 209213978), (2, 104606989), (19, 11011262), (31, 6748838), (38, 5505631), (62, 3374419), (589, 355202), (1178, 177601)]