128790747

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{439}}^1\times {\mathrm{881}}^1$

素因数の和:1363

約数の個数: 24

約数和(自身を含む): 191711520

約数和(自身を除く): 62920773

約数列:

[1, 3, 9, 37, 111, 333, 439, 881, 1317, 2643, 3951, 7929, 16243, 32597, 48729, 97791, 146187, 293373, 386759, 1160277, 3480831, 14310083, 42930249, 128790747]

約数ペア:

[(1, 128790747), (3, 42930249), (9, 14310083), (37, 3480831), (111, 1160277), (333, 386759), (439, 293373), (881, 146187), (1317, 97791), (2643, 48729), (3951, 32597), (7929, 16243)]