20420444

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1361}}^1$

素因数の和:1418

約数の個数: 36

約数和(自身を含む): 40576704

約数和(自身を除く): 20156260

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 121, 124, 242, 341, 484, 682, 1361, 1364, 2722, 3751, 5444, 7502, 14971, 15004, 29942, 42191, 59884, 84382, 164681, 168764, 329362, 464101, 658724, 928202, 1856404, 5105111, 10210222, 20420444]

約数ペア:

[(1, 20420444), (2, 10210222), (4, 5105111), (11, 1856404), (22, 928202), (31, 658724), (44, 464101), (62, 329362), (121, 168764), (124, 164681), (242, 84382), (341, 59884), (484, 42191), (682, 29942), (1361, 15004), (1364, 14971), (2722, 7502), (3751, 5444)]