20651138

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{2437}}^1$

素因数の和:2681

約数の個数: 16

約数和(自身を含む): 32766720

約数和(自身を除く): 12115582

約数列:

[1, 2, 19, 38, 223, 446, 2437, 4237, 4874, 8474, 46303, 92606, 543451, 1086902, 10325569, 20651138]

約数ペア:

[(1, 20651138), (2, 10325569), (19, 1086902), (38, 543451), (223, 92606), (446, 46303), (2437, 8474), (4237, 4874)]