18913576

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1091}}^1$

素因数の和:1305

約数の個数: 32

約数和(自身を含む): 38918880

約数和(自身を除く): 20005304

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 197, 394, 788, 1091, 1576, 2167, 2182, 4334, 4364, 8668, 8728, 12001, 17336, 24002, 48004, 96008, 214927, 429854, 859708, 1719416, 2364197, 4728394, 9456788, 18913576]

約数ペア:

[(1, 18913576), (2, 9456788), (4, 4728394), (8, 2364197), (11, 1719416), (22, 859708), (44, 429854), (88, 214927), (197, 96008), (394, 48004), (788, 24002), (1091, 17336), (1576, 12001), (2167, 8728), (2182, 8668), (4334, 4364)]