21031171777

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{1831}}^1$

素因数の和:2122

約数の個数: 48

約数和(自身を含む): 26946404352

約数和(自身を除く): 5915232575

約数列:

[1, 7, 11, 71, 77, 121, 191, 497, 781, 847, 1337, 1831, 2101, 5467, 8591, 12817, 13561, 14707, 20141, 23111, 60137, 94927, 130001, 140987, 149171, 161777, 221551, 349721, 910007, 1044197, 1430011, 1550857, 1640881, 2448047, 3846931, 10010077, 11486167, 15730121, 24830191, 26928517, 42316241, 110110847, 173811337, 273132101, 296213687, 1911924707, 3004453111, 21031171777]

約数ペア:

[(1, 21031171777), (7, 3004453111), (11, 1911924707), (71, 296213687), (77, 273132101), (121, 173811337), (191, 110110847), (497, 42316241), (781, 26928517), (847, 24830191), (1337, 15730121), (1831, 11486167), (2101, 10010077), (5467, 3846931), (8591, 2448047), (12817, 1640881), (13561, 1550857), (14707, 1430011), (20141, 1044197), (23111, 910007), (60137, 349721), (94927, 221551), (130001, 161777), (140987, 149171)]