19885968

素因数分解:

$2^4\times 3^2\times {\mathrm{197}}^1\times {\mathrm{701}}^1$

素因数の和:912

約数の個数: 60

約数和(自身を含む): 56015388

約数和(自身を除く): 36129420

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 197, 394, 591, 701, 788, 1182, 1402, 1576, 1773, 2103, 2364, 2804, 3152, 3546, 4206, 4728, 5608, 6309, 7092, 8412, 9456, 11216, 12618, 14184, 16824, 25236, 28368, 33648, 50472, 100944, 138097, 276194, 414291, 552388, 828582, 1104776, 1242873, 1657164, 2209552, 2485746, 3314328, 4971492, 6628656, 9942984, 19885968]

約数ペア:

[(1, 19885968), (2, 9942984), (3, 6628656), (4, 4971492), (6, 3314328), (8, 2485746), (9, 2209552), (12, 1657164), (16, 1242873), (18, 1104776), (24, 828582), (36, 552388), (48, 414291), (72, 276194), (144, 138097), (197, 100944), (394, 50472), (591, 33648), (701, 28368), (788, 25236), (1182, 16824), (1402, 14184), (1576, 12618), (1773, 11216), (2103, 9456), (2364, 8412), (2804, 7092), (3152, 6309), (3546, 5608), (4206, 4728)]