19801912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{190403}}^1$

素因数の和:190422

約数の個数: 16

約数和(自身を含む): 39984840

約数和(自身を除く): 20182928

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 190403, 380806, 761612, 1523224, 2475239, 4950478, 9900956, 19801912]

約数ペア:

[(1, 19801912), (2, 9900956), (4, 4950478), (8, 2475239), (13, 1523224), (26, 761612), (52, 380806), (104, 190403)]