21986391

素因数分解:

$3^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{5849}}^1$

素因数の和:6038

約数の個数: 16

約数和(自身を含む): 33696000

約数和(自身を除く): 11709609

約数列:

[1, 3, 7, 21, 179, 537, 1253, 3759, 5849, 17547, 40943, 122829, 1046971, 3140913, 7328797, 21986391]

約数ペア:

[(1, 21986391), (3, 7328797), (7, 3140913), (21, 1046971), (179, 122829), (537, 40943), (1253, 17547), (3759, 5849)]