20356556

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{137}}^1\times {\mathrm{307}}^1$

素因数の和:470

約数の個数: 36

約数和(自身を含む): 39571224

約数和(自身を除く): 19214668

約数列:

[1, 2, 4, 11, 22, 44, 121, 137, 242, 274, 307, 484, 548, 614, 1228, 1507, 3014, 3377, 6028, 6754, 13508, 16577, 33154, 37147, 42059, 66308, 74294, 84118, 148588, 168236, 462649, 925298, 1850596, 5089139, 10178278, 20356556]

約数ペア:

[(1, 20356556), (2, 10178278), (4, 5089139), (11, 1850596), (22, 925298), (44, 462649), (121, 168236), (137, 148588), (242, 84118), (274, 74294), (307, 66308), (484, 42059), (548, 37147), (614, 33154), (1228, 16577), (1507, 13508), (3014, 6754), (3377, 6028)]