18937377

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^2\times {\mathrm{53}}^1$

素因数の和:162

約数の個数: 36

約数和(自身を含む): 29631420

約数和(自身を除く): 10694043

約数列:

[1, 3, 9, 29, 37, 53, 87, 111, 159, 261, 333, 477, 1073, 1369, 1537, 1961, 3219, 4107, 4611, 5883, 9657, 12321, 13833, 17649, 39701, 56869, 72557, 119103, 170607, 217671, 357309, 511821, 653013, 2104153, 6312459, 18937377]

約数ペア:

[(1, 18937377), (3, 6312459), (9, 2104153), (29, 653013), (37, 511821), (53, 357309), (87, 217671), (111, 170607), (159, 119103), (261, 72557), (333, 56869), (477, 39701), (1073, 17649), (1369, 13833), (1537, 12321), (1961, 9657), (3219, 5883), (4107, 4611)]