19820367

素因数分解:

$3^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1597}}^1$

素因数の和:1807

約数の個数: 24

約数和(自身を含む): 32906016

約数和(自身を除く): 13085649

約数列:

[1, 3, 7, 9, 21, 63, 197, 591, 1379, 1597, 1773, 4137, 4791, 11179, 12411, 14373, 33537, 100611, 314609, 943827, 2202263, 2831481, 6606789, 19820367]

約数ペア:

[(1, 19820367), (3, 6606789), (7, 2831481), (9, 2202263), (21, 943827), (63, 314609), (197, 100611), (591, 33537), (1379, 14373), (1597, 12411), (1773, 11179), (4137, 4791)]