20172984016

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20669041}}^1$

素因数の和:20669110

約数の個数: 20

約数和(自身を含む): 39725898724

約数和(自身を除く): 19552914708

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20669041, 41338082, 82676164, 165352328, 330704656, 1260811501, 2521623002, 5043246004, 10086492008, 20172984016]

約数ペア:

[(1, 20172984016), (2, 10086492008), (4, 5043246004), (8, 2521623002), (16, 1260811501), (61, 330704656), (122, 165352328), (244, 82676164), (488, 41338082), (976, 20669041)]