20727105

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{643}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 38083584

約数和(自身を除く): 17356479

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 307, 643, 921, 1535, 1929, 2149, 3215, 4501, 4605, 6447, 9645, 10745, 13503, 22505, 32235, 67515, 197401, 592203, 987005, 1381807, 2961015, 4145421, 6909035, 20727105]

約数ペア:

[(1, 20727105), (3, 6909035), (5, 4145421), (7, 2961015), (15, 1381807), (21, 987005), (35, 592203), (105, 197401), (307, 67515), (643, 32235), (921, 22505), (1535, 13503), (1929, 10745), (2149, 9645), (3215, 6447), (4501, 4605)]