19923988

素因数分解:

$2^2\times 7^2\times {\mathrm{101653}}^1$

素因数の和:101671

約数の個数: 18

約数和(自身を含む): 40559946

約数和(自身を除く): 20635958

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 101653, 203306, 406612, 711571, 1423142, 2846284, 4980997, 9961994, 19923988]

約数ペア:

[(1, 19923988), (2, 9961994), (4, 4980997), (7, 2846284), (14, 1423142), (28, 711571), (49, 406612), (98, 203306), (196, 101653)]