20431852

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23539}}^1$

素因数の和:23581

約数の個数: 24

約数和(自身を含む): 42183680

約数和(自身を除く): 21751828

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 23539, 47078, 94156, 164773, 329546, 659092, 729709, 1459418, 2918836, 5107963, 10215926, 20431852]

約数ペア:

[(1, 20431852), (2, 10215926), (4, 5107963), (7, 2918836), (14, 1459418), (28, 729709), (31, 659092), (62, 329546), (124, 164773), (217, 94156), (434, 47078), (868, 23539)]