16871421

素因数分解:

$3^1\times 7^1\times {\mathrm{563}}^1\times {\mathrm{1427}}^1$

素因数の和:2000

約数の個数: 16

約数和(自身を含む): 25772544

約数和(自身を除く): 8901123

約数列:

[1, 3, 7, 21, 563, 1427, 1689, 3941, 4281, 9989, 11823, 29967, 803401, 2410203, 5623807, 16871421]

約数ペア:

[(1, 16871421), (3, 5623807), (7, 2410203), (21, 803401), (563, 29967), (1427, 11823), (1689, 9989), (3941, 4281)]