28399887

素因数分解:

$3^2\times {\mathrm{101}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:463

約数の個数: 24

約数和(自身を含む): 41901600

約数和(自身を除く): 13501713

約数列:

[1, 3, 9, 101, 157, 199, 303, 471, 597, 909, 1413, 1791, 15857, 20099, 31243, 47571, 60297, 93729, 142713, 180891, 281187, 3155543, 9466629, 28399887]

約数ペア:

[(1, 28399887), (3, 9466629), (9, 3155543), (101, 281187), (157, 180891), (199, 142713), (303, 93729), (471, 60297), (597, 47571), (909, 31243), (1413, 20099), (1791, 15857)]