20906432799

素因数分解:

$3^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{823}}^1\times {\mathrm{2887}}^1$

素因数の和:4139

約数の個数: 32

約数和(自身を含む): 31983329280

約数和(自身を除く): 11076896481

約数列:

[1, 3, 7, 21, 419, 823, 1257, 2469, 2887, 2933, 5761, 8661, 8799, 17283, 20209, 60627, 344837, 1034511, 1209653, 2376001, 2413859, 3628959, 7128003, 7241577, 8467571, 16632007, 25402713, 49896021, 995544419, 2986633257, 6968810933, 20906432799]

約数ペア:

[(1, 20906432799), (3, 6968810933), (7, 2986633257), (21, 995544419), (419, 49896021), (823, 25402713), (1257, 16632007), (2469, 8467571), (2887, 7241577), (2933, 7128003), (5761, 3628959), (8661, 2413859), (8799, 2376001), (17283, 1209653), (20209, 1034511), (60627, 344837)]