128424891

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{839}}^1$

素因数の和:1083

約数の個数: 32

約数和(自身を含む): 202245120

約数和(自身を除く): 73820229

約数列:

[1, 3, 7, 21, 37, 111, 197, 259, 591, 777, 839, 1379, 2517, 4137, 5873, 7289, 17619, 21867, 31043, 51023, 93129, 153069, 165283, 217301, 495849, 651903, 1156981, 3470943, 6115471, 18346413, 42808297, 128424891]

約数ペア:

[(1, 128424891), (3, 42808297), (7, 18346413), (21, 6115471), (37, 3470943), (111, 1156981), (197, 651903), (259, 495849), (591, 217301), (777, 165283), (839, 153069), (1379, 93129), (2517, 51023), (4137, 31043), (5873, 21867), (7289, 17619)]