21000751891

素因数分解:

$7^1\times {\mathrm{823}}^1\times {\mathrm{1097}}^1\times {\mathrm{3323}}^1$

素因数の和:5250

約数の個数: 16

約数和(自身を含む): 24059165184

約数和(自身を除く): 3058413293

約数列:

[1, 7, 823, 1097, 3323, 5761, 7679, 23261, 902831, 2734829, 3645331, 6319817, 19143803, 25517317, 3000107413, 21000751891]

約数ペア:

[(1, 21000751891), (7, 3000107413), (823, 25517317), (1097, 19143803), (3323, 6319817), (5761, 3645331), (7679, 2734829), (23261, 902831)]