1257354567

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{283}}^1\times {\mathrm{647}}^1$

素因数の和:1052

約数の個数: 48

約数和(自身を含む): 2105326080

約数和(自身を除く): 847971513

約数列:

[1, 3, 7, 9, 21, 63, 109, 283, 327, 647, 763, 849, 981, 1941, 1981, 2289, 2547, 4529, 5823, 5943, 6867, 13587, 17829, 30847, 40761, 70523, 92541, 183101, 211569, 215929, 277623, 493661, 549303, 634707, 647787, 1281707, 1480983, 1647909, 1943361, 3845121, 4442949, 11535363, 19958009, 59874027, 139706063, 179622081, 419118189, 1257354567]

約数ペア:

[(1, 1257354567), (3, 419118189), (7, 179622081), (9, 139706063), (21, 59874027), (63, 19958009), (109, 11535363), (283, 4442949), (327, 3845121), (647, 1943361), (763, 1647909), (849, 1480983), (981, 1281707), (1941, 647787), (1981, 634707), (2289, 549303), (2547, 493661), (4529, 277623), (5823, 215929), (5943, 211569), (6867, 183101), (13587, 92541), (17829, 70523), (30847, 40761)]