128511891

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{6131}}^1$

素因数の和:6291

約数の個数: 24

約数和(自身を含む): 198014544

約数和(自身を除く): 69502653

約数列:

[1, 3, 9, 17, 51, 137, 153, 411, 1233, 2329, 6131, 6987, 18393, 20961, 55179, 104227, 312681, 839947, 938043, 2519841, 7559523, 14279099, 42837297, 128511891]

約数ペア:

[(1, 128511891), (3, 42837297), (9, 14279099), (17, 7559523), (51, 2519841), (137, 938043), (153, 839947), (411, 312681), (1233, 104227), (2329, 55179), (6131, 20961), (6987, 18393)]