257029131

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1\times {\mathrm{277}}^1$

素因数の和:595

約数の個数: 32

約数和(自身を含む): 368650240

約数和(自身を除く): 111621109

約数列:

[1, 3, 19, 57, 73, 219, 223, 277, 669, 831, 1387, 4161, 4237, 5263, 12711, 15789, 16279, 20221, 48837, 60663, 61771, 185313, 309301, 384199, 927903, 1152597, 1173649, 3520947, 4509283, 13527849, 85676377, 257029131]

約数ペア:

[(1, 257029131), (3, 85676377), (19, 13527849), (57, 4509283), (73, 3520947), (219, 1173649), (223, 1152597), (277, 927903), (669, 384199), (831, 309301), (1387, 185313), (4161, 61771), (4237, 60663), (5263, 48837), (12711, 20221), (15789, 16279)]