20077772

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{3191}}^1$

素因数の和:3230

約数の個数: 36

約数和(自身を含む): 41604528

約数和(自身を除く): 21526756

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 121, 143, 242, 286, 484, 572, 1573, 3146, 3191, 6292, 6382, 12764, 35101, 41483, 70202, 82966, 140404, 165932, 386111, 456313, 772222, 912626, 1544444, 1825252, 5019443, 10038886, 20077772]

約数ペア:

[(1, 20077772), (2, 10038886), (4, 5019443), (11, 1825252), (13, 1544444), (22, 912626), (26, 772222), (44, 456313), (52, 386111), (121, 165932), (143, 140404), (242, 82966), (286, 70202), (484, 41483), (572, 35101), (1573, 12764), (3146, 6382), (3191, 6292)]