128609817

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{1607}}^1$

素因数の和:1757

約数の個数: 32

約数和(自身を含む): 203354112

約数和(自身を除く): 74744295

約数列:

[1, 3, 7, 21, 37, 103, 111, 259, 309, 721, 777, 1607, 2163, 3811, 4821, 11249, 11433, 26677, 33747, 59459, 80031, 165521, 178377, 416213, 496563, 1158647, 1248639, 3475941, 6124277, 18372831, 42869939, 128609817]

約数ペア:

[(1, 128609817), (3, 42869939), (7, 18372831), (21, 6124277), (37, 3475941), (103, 1248639), (111, 1158647), (259, 496563), (309, 416213), (721, 178377), (777, 165521), (1607, 80031), (2163, 59459), (3811, 33747), (4821, 26677), (11249, 11433)]