212879097

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{138323}}^1$

素因数の和:138354

約数の個数: 20

約数和(自身を含む): 334744080

約数和(自身を除く): 121864983

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 138323, 414969, 1244907, 2628137, 3734721, 7884411, 11204163, 23653233, 70959699, 212879097]

約数ペア:

[(1, 212879097), (3, 70959699), (9, 23653233), (19, 11204163), (27, 7884411), (57, 3734721), (81, 2628137), (171, 1244907), (513, 414969), (1539, 138323)]