20758538

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{839}}^1$

素因数の和:1069

約数の個数: 16

約数和(自身を含む): 31752000

約数和(自身を除く): 10993462

約数列:

[1, 2, 89, 139, 178, 278, 839, 1678, 12371, 24742, 74671, 116621, 149342, 233242, 10379269, 20758538]

約数ペア:

[(1, 20758538), (2, 10379269), (89, 233242), (139, 149342), (178, 116621), (278, 74671), (839, 24742), (1678, 12371)]