21379634512

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{8511001}}^1$

素因数の和:8511166

約数の個数: 20

約数和(自身を含む): 41686887796

約数和(自身を除く): 20307253284

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 8511001, 17022002, 34044004, 68088008, 136176016, 1336227157, 2672454314, 5344908628, 10689817256, 21379634512]

約数ペア:

[(1, 21379634512), (2, 10689817256), (4, 5344908628), (8, 2672454314), (16, 1336227157), (157, 136176016), (314, 68088008), (628, 34044004), (1256, 17022002), (2512, 8511001)]