18938675

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3491}}^1$

素因数の和:3539

約数の個数: 24

約数和(自身を含む): 27712512

約数和(自身を除く): 8773837

約数列:

[1, 5, 7, 25, 31, 35, 155, 175, 217, 775, 1085, 3491, 5425, 17455, 24437, 87275, 108221, 122185, 541105, 610925, 757547, 2705525, 3787735, 18938675]

約数ペア:

[(1, 18938675), (5, 3787735), (7, 2705525), (25, 757547), (31, 610925), (35, 541105), (155, 122185), (175, 108221), (217, 87275), (775, 24437), (1085, 17455), (3491, 5425)]