1621802979

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{870533}}^1$

素因数の和:870568

約数の個数: 20

約数和(自身を含む): 2528030736

約数和(自身を除く): 906227757

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 870533, 2611599, 7834797, 20022259, 23504391, 60066777, 70513173, 180200331, 540600993, 1621802979]

約数ペア:

[(1, 1621802979), (3, 540600993), (9, 180200331), (23, 70513173), (27, 60066777), (69, 23504391), (81, 20022259), (207, 7834797), (621, 2611599), (1863, 870533)]