20857235

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{20549}}^1$

素因数の和:20590

約数の個数: 16

約数和(自身を含む): 29592000

約数和(自身を除く): 8734765

約数列:

[1, 5, 7, 29, 35, 145, 203, 1015, 20549, 102745, 143843, 595921, 719215, 2979605, 4171447, 20857235]

約数ペア:

[(1, 20857235), (5, 4171447), (7, 2979605), (29, 719215), (35, 595921), (145, 143843), (203, 102745), (1015, 20549)]