251980894

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{128693}}^1$

素因数の和:128795

約数の個数: 16

約数和(自身を含む): 416968560

約数和(自身を除く): 164987666

約数列:

[1, 2, 11, 22, 89, 178, 979, 1958, 128693, 257386, 1415623, 2831246, 11453677, 22907354, 125990447, 251980894]

約数ペア:

[(1, 251980894), (2, 125990447), (11, 22907354), (22, 11453677), (89, 2831246), (178, 1415623), (979, 257386), (1958, 128693)]