20921397182

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{11407523}}^1$

素因数の和:11407663

約数の個数: 16

約数和(自身を含む): 36139036032

約数和(自身を除く): 15217638850

約数列:

[1, 2, 7, 14, 131, 262, 917, 1834, 11407523, 22815046, 79852661, 159705322, 1494385513, 2988771026, 10460698591, 20921397182]

約数ペア:

[(1, 20921397182), (2, 10460698591), (7, 2988771026), (14, 1494385513), (131, 159705322), (262, 79852661), (917, 22815046), (1834, 11407523)]