20425909

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{433}}^1$

素因数の和:756

約数の個数: 16

約数和(自身を含む): 24498432

約数和(自身を除く): 4072523

約数列:

[1, 7, 23, 161, 293, 433, 2051, 3031, 6739, 9959, 47173, 69713, 126869, 888083, 2917987, 20425909]

約数ペア:

[(1, 20425909), (7, 2917987), (23, 888083), (161, 126869), (293, 69713), (433, 47173), (2051, 9959), (3031, 6739)]