21019145

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{16231}}^1$

素因数の和:16280

約数の個数: 16

約数和(自身を含む): 29607168

約数和(自身を除く): 8588023

約数列:

[1, 5, 7, 35, 37, 185, 259, 1295, 16231, 81155, 113617, 568085, 600547, 3002735, 4203829, 21019145]

約数ペア:

[(1, 21019145), (5, 4203829), (7, 3002735), (35, 600547), (37, 568085), (185, 113617), (259, 81155), (1295, 16231)]