208987953

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{15581}}^1$

素因数の和:15864

約数の個数: 16

約数和(自身を含む): 296182656

約数和(自身を除く): 87194703

約数列:

[1, 3, 17, 51, 263, 789, 4471, 13413, 15581, 46743, 264877, 794631, 4097803, 12293409, 69662651, 208987953]

約数ペア:

[(1, 208987953), (3, 69662651), (17, 12293409), (51, 4097803), (263, 794631), (789, 264877), (4471, 46743), (13413, 15581)]