28087947

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1979}}^1$

素因数の和:2087

約数の個数: 24

約数和(自身を含む): 43243200

約数和(自身を除く): 15155253

約数列:

[1, 3, 9, 19, 57, 83, 171, 249, 747, 1577, 1979, 4731, 5937, 14193, 17811, 37601, 112803, 164257, 338409, 492771, 1478313, 3120883, 9362649, 28087947]

約数ペア:

[(1, 28087947), (3, 9362649), (9, 3120883), (19, 1478313), (57, 492771), (83, 338409), (171, 164257), (249, 112803), (747, 37601), (1577, 17811), (1979, 14193), (4731, 5937)]