257069449

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{11437}}^1$

素因数の和:11489

約数の個数: 24

約数和(自身を含む): 334904640

約数和(自身を除く): 77835191

約数列:

[1, 7, 13, 19, 91, 133, 169, 247, 1183, 1729, 3211, 11437, 22477, 80059, 148681, 217303, 1040767, 1521121, 1932853, 2824939, 13529971, 19774573, 36724207, 257069449]

約数ペア:

[(1, 257069449), (7, 36724207), (13, 19774573), (19, 13529971), (91, 2824939), (133, 1932853), (169, 1521121), (247, 1040767), (1183, 217303), (1729, 148681), (3211, 80059), (11437, 22477)]