21325136

素因数分解:

$2^4\times 7^1\times {\mathrm{190403}}^1$

素因数の和:190418

約数の個数: 20

約数和(自身を含む): 47220192

約数和(自身を除く): 25895056

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 190403, 380806, 761612, 1332821, 1523224, 2665642, 3046448, 5331284, 10662568, 21325136]

約数ペア:

[(1, 21325136), (2, 10662568), (4, 5331284), (7, 3046448), (8, 2665642), (14, 1523224), (16, 1332821), (28, 761612), (56, 380806), (112, 190403)]