209005076

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{140839}}^1$

素因数の和:140903

約数の個数: 24

約数和(自身を含む): 425900160

約数和(自身を除く): 216895084

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 140839, 281678, 563356, 985873, 1971746, 3943492, 7464467, 14928934, 29857868, 52251269, 104502538, 209005076]

約数ペア:

[(1, 209005076), (2, 104502538), (4, 52251269), (7, 29857868), (14, 14928934), (28, 7464467), (53, 3943492), (106, 1971746), (212, 985873), (371, 563356), (742, 281678), (1484, 140839)]