21316254869

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{156059}}^1$

素因数の和:156177

約数の個数: 32

約数和(自身を含む): 27965952000

約数和(自身を除く): 6649697131

約数列:

[1, 7, 13, 19, 79, 91, 133, 247, 553, 1027, 1501, 1729, 7189, 10507, 19513, 136591, 156059, 1092413, 2028767, 2965121, 12328661, 14201369, 20755847, 38546573, 86300627, 160272593, 234244559, 269826011, 1121908151, 1639711913, 3045179267, 21316254869]

約数ペア:

[(1, 21316254869), (7, 3045179267), (13, 1639711913), (19, 1121908151), (79, 269826011), (91, 234244559), (133, 160272593), (247, 86300627), (553, 38546573), (1027, 20755847), (1501, 14201369), (1729, 12328661), (7189, 2965121), (10507, 2028767), (19513, 1092413), (136591, 156059)]