20236881

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{757}}^1$

素因数の和:853

約数の個数: 32

約数和(自身を含む): 32988160

約数和(自身を除く): 12751279

約数列:

[1, 3, 7, 19, 21, 57, 67, 133, 201, 399, 469, 757, 1273, 1407, 2271, 3819, 5299, 8911, 14383, 15897, 26733, 43149, 50719, 100681, 152157, 302043, 355033, 963661, 1065099, 2890983, 6745627, 20236881]

約数ペア:

[(1, 20236881), (3, 6745627), (7, 2890983), (19, 1065099), (21, 963661), (57, 355033), (67, 302043), (133, 152157), (201, 100681), (399, 50719), (469, 43149), (757, 26733), (1273, 15897), (1407, 14383), (2271, 8911), (3819, 5299)]