20561324

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{6737}}^1$

素因数の和:6857

約数の個数: 24

約数和(自身を含む): 41506080

約数和(自身を除く): 20944756

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 436, 763, 1526, 3052, 6737, 13474, 26948, 47159, 94318, 188636, 734333, 1468666, 2937332, 5140331, 10280662, 20561324]

約数ペア:

[(1, 20561324), (2, 10280662), (4, 5140331), (7, 2937332), (14, 1468666), (28, 734333), (109, 188636), (218, 94318), (436, 47159), (763, 26948), (1526, 13474), (3052, 6737)]