20990596

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1399}}^1$

素因数の和:1456

約数の個数: 36

約数和(自身を含む): 41708800

約数和(自身を除く): 20718204

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 121, 124, 242, 341, 484, 682, 1364, 1399, 2798, 3751, 5596, 7502, 15004, 15389, 30778, 43369, 61556, 86738, 169279, 173476, 338558, 477059, 677116, 954118, 1908236, 5247649, 10495298, 20990596]

約数ペア:

[(1, 20990596), (2, 10495298), (4, 5247649), (11, 1908236), (22, 954118), (31, 677116), (44, 477059), (62, 338558), (121, 173476), (124, 169279), (242, 86738), (341, 61556), (484, 43369), (682, 30778), (1364, 15389), (1399, 15004), (2798, 7502), (3751, 5596)]