20975734

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{42461}}^1$

素因数の和:42495

約数の個数: 16

約数和(自身を含む): 35668080

約数和(自身を除く): 14692346

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 42461, 84922, 551993, 806759, 1103986, 1613518, 10487867, 20975734]

約数ペア:

[(1, 20975734), (2, 10487867), (13, 1613518), (19, 1103986), (26, 806759), (38, 551993), (247, 84922), (494, 42461)]