28154918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:380

約数の個数: 32

約数和(自身を含む): 47520000

約数和(自身を除く): 19365082

約数列:

[1, 2, 11, 22, 59, 109, 118, 199, 218, 398, 649, 1199, 1298, 2189, 2398, 4378, 6431, 11741, 12862, 21691, 23482, 43382, 70741, 129151, 141482, 238601, 258302, 477202, 1279769, 2559538, 14077459, 28154918]

約数ペア:

[(1, 28154918), (2, 14077459), (11, 2559538), (22, 1279769), (59, 477202), (109, 258302), (118, 238601), (199, 141482), (218, 129151), (398, 70741), (649, 43382), (1199, 23482), (1298, 21691), (2189, 12862), (2398, 11741), (4378, 6431)]