19782572

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1987}}^1$

素因数の和:2141

約数の個数: 24

約数和(自身を含む): 36738240

約数和(自身を除く): 16955668

約数列:

[1, 2, 4, 19, 38, 76, 131, 262, 524, 1987, 2489, 3974, 4978, 7948, 9956, 37753, 75506, 151012, 260297, 520594, 1041188, 4945643, 9891286, 19782572]

約数ペア:

[(1, 19782572), (2, 9891286), (4, 4945643), (19, 1041188), (38, 520594), (76, 260297), (131, 151012), (262, 75506), (524, 37753), (1987, 9956), (2489, 7948), (3974, 4978)]