28178997

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{613}}^1$

素因数の和:833

約数の個数: 32

約数和(自身を含む): 47155200

約数和(自身を除く): 18976203

約数列:

[1, 3, 7, 11, 21, 33, 77, 199, 231, 597, 613, 1393, 1839, 2189, 4179, 4291, 6567, 6743, 12873, 15323, 20229, 45969, 47201, 121987, 141603, 365961, 853909, 1341857, 2561727, 4025571, 9392999, 28178997]

約数ペア:

[(1, 28178997), (3, 9392999), (7, 4025571), (11, 2561727), (21, 1341857), (33, 853909), (77, 365961), (199, 141603), (231, 121987), (597, 47201), (613, 45969), (1393, 20229), (1839, 15323), (2189, 12873), (4179, 6743), (4291, 6567)]