19809278

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{2539}}^1$

素因数の和:2671

約数の個数: 16

約数和(自身を含む): 30723840

約数和(自身を除く): 10914562

約数列:

[1, 2, 47, 83, 94, 166, 2539, 3901, 5078, 7802, 119333, 210737, 238666, 421474, 9904639, 19809278]

約数ペア:

[(1, 19809278), (2, 9904639), (47, 421474), (83, 238666), (94, 210737), (166, 119333), (2539, 7802), (3901, 5078)]