278317650051

素因数分解:

$3^4\times 7^1\times {\mathrm{490860053}}^1$

素因数の和:490860072

約数の個数: 20

約数和(自身を含む): 475152532272

約数和(自身を除く): 196834882221

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 490860053, 1472580159, 3436020371, 4417740477, 10308061113, 13253221431, 30924183339, 39759664293, 92772550017, 278317650051]

約数ペア:

[(1, 278317650051), (3, 92772550017), (7, 39759664293), (9, 30924183339), (21, 13253221431), (27, 10308061113), (63, 4417740477), (81, 3436020371), (189, 1472580159), (567, 490860053)]