156974727

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{709}}^1\times {\mathrm{811}}^1$

素因数の和:1543

約数の個数: 32

約数和(自身を含む): 258280960

約数和(自身を除く): 101306233

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 709, 811, 2127, 2433, 4963, 5677, 9217, 10543, 14889, 17031, 27651, 31629, 64519, 73801, 193557, 221403, 574999, 1724997, 4024993, 7474987, 12074979, 22424961, 52324909, 156974727]

約数ペア:

[(1, 156974727), (3, 52324909), (7, 22424961), (13, 12074979), (21, 7474987), (39, 4024993), (91, 1724997), (273, 574999), (709, 221403), (811, 193557), (2127, 73801), (2433, 64519), (4963, 31629), (5677, 27651), (9217, 17031), (10543, 14889)]