18872336

素因数分解:

$2^4\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1009}}^1$

素因数の和:1191

約数の個数: 40

約数和(自身を含む): 42080640

約数和(自身を除く): 23208304

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 167, 334, 668, 1009, 1169, 1336, 2018, 2338, 2672, 4036, 4676, 7063, 8072, 9352, 14126, 16144, 18704, 28252, 56504, 113008, 168503, 337006, 674012, 1179521, 1348024, 2359042, 2696048, 4718084, 9436168, 18872336]

約数ペア:

[(1, 18872336), (2, 9436168), (4, 4718084), (7, 2696048), (8, 2359042), (14, 1348024), (16, 1179521), (28, 674012), (56, 337006), (112, 168503), (167, 113008), (334, 56504), (668, 28252), (1009, 18704), (1169, 16144), (1336, 14126), (2018, 9352), (2338, 8072), (2672, 7063), (4036, 4676)]