21985180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157037}}^1$

素因数の和:157053

約数の個数: 24

約数和(自身を含む): 52764768

約数和(自身を除く): 30779588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157037, 314074, 628148, 785185, 1099259, 1570370, 2198518, 3140740, 4397036, 5496295, 10992590, 21985180]

約数ペア:

[(1, 21985180), (2, 10992590), (4, 5496295), (5, 4397036), (7, 3140740), (10, 2198518), (14, 1570370), (20, 1099259), (28, 785185), (35, 628148), (70, 314074), (140, 157037)]