19978992

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{12613}}^1$

素因数の和:12638

約数の個数: 60

約数和(自身を含む): 61001304

約数和(自身を除く): 41022312

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 72, 88, 99, 132, 144, 176, 198, 264, 396, 528, 792, 1584, 12613, 25226, 37839, 50452, 75678, 100904, 113517, 138743, 151356, 201808, 227034, 277486, 302712, 416229, 454068, 554972, 605424, 832458, 908136, 1109944, 1248687, 1664916, 1816272, 2219888, 2497374, 3329832, 4994748, 6659664, 9989496, 19978992]

約数ペア:

[(1, 19978992), (2, 9989496), (3, 6659664), (4, 4994748), (6, 3329832), (8, 2497374), (9, 2219888), (11, 1816272), (12, 1664916), (16, 1248687), (18, 1109944), (22, 908136), (24, 832458), (33, 605424), (36, 554972), (44, 454068), (48, 416229), (66, 302712), (72, 277486), (88, 227034), (99, 201808), (132, 151356), (144, 138743), (176, 113517), (198, 100904), (264, 75678), (396, 50452), (528, 37839), (792, 25226), (1584, 12613)]