21338247

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59771}}^1$

素因数の和:59798

約数の個数: 16

約数和(自身を含む): 34428672

約数和(自身を除く): 13090425

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 59771, 179313, 418397, 1016107, 1255191, 3048321, 7112749, 21338247]

約数ペア:

[(1, 21338247), (3, 7112749), (7, 3048321), (17, 1255191), (21, 1016107), (51, 418397), (119, 179313), (357, 59771)]