19720052

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{3529}}^1$

素因数の和:3671

約数の個数: 24

約数和(自身を含む): 37954560

約数和(自身を除く): 18234508

約数列:

[1, 2, 4, 11, 22, 44, 127, 254, 508, 1397, 2794, 3529, 5588, 7058, 14116, 38819, 77638, 155276, 448183, 896366, 1792732, 4930013, 9860026, 19720052]

約数ペア:

[(1, 19720052), (2, 9860026), (4, 4930013), (11, 1792732), (22, 896366), (44, 448183), (127, 155276), (254, 77638), (508, 38819), (1397, 14116), (2794, 7058), (3529, 5588)]