20390055

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11423}}^1$

素因数の和:11455

約数の個数: 32

約数和(自身を含む): 39481344

約数和(自身を除く): 19091289

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 11423, 34269, 57115, 79961, 171345, 194191, 239883, 399805, 582573, 970955, 1199415, 1359337, 2912865, 4078011, 6796685, 20390055]

約数ペア:

[(1, 20390055), (3, 6796685), (5, 4078011), (7, 2912865), (15, 1359337), (17, 1199415), (21, 970955), (35, 582573), (51, 399805), (85, 239883), (105, 194191), (119, 171345), (255, 79961), (357, 57115), (595, 34269), (1785, 11423)]