1257508749

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1\times {\mathrm{4561}}^1$

素因数の和:5281

約数の個数: 32

約数和(自身を含む): 2020418560

約数和(自身を除く): 762909811

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 691, 2073, 4561, 4837, 13129, 13683, 14511, 31927, 39387, 86659, 91903, 95781, 259977, 275709, 606613, 1819839, 3151651, 9454953, 22061557, 59881369, 66184671, 179644107, 419169583, 1257508749]

約数ペア:

[(1, 1257508749), (3, 419169583), (7, 179644107), (19, 66184671), (21, 59881369), (57, 22061557), (133, 9454953), (399, 3151651), (691, 1819839), (2073, 606613), (4561, 275709), (4837, 259977), (13129, 95781), (13683, 91903), (14511, 86659), (31927, 39387)]