213599673

素因数分解:

$3^5\times 7^2\times {\mathrm{17939}}^1$

素因数の和:17968

約数の個数: 36

約数和(自身を含む): 372219120

約数和(自身を除く): 158619447

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 1323, 1701, 3969, 11907, 17939, 53817, 125573, 161451, 376719, 484353, 879011, 1130157, 1453059, 2637033, 3390471, 4359177, 7911099, 10171413, 23733297, 30514239, 71199891, 213599673]

約数ペア:

[(1, 213599673), (3, 71199891), (7, 30514239), (9, 23733297), (21, 10171413), (27, 7911099), (49, 4359177), (63, 3390471), (81, 2637033), (147, 1453059), (189, 1130157), (243, 879011), (441, 484353), (567, 376719), (1323, 161451), (1701, 125573), (3969, 53817), (11907, 17939)]