20987052

素因数分解:

$2^2\times 3^1\times {\mathrm{691}}^1\times {\mathrm{2531}}^1$

素因数の和:3229

約数の個数: 24

約数和(自身を含む): 49060032

約数和(自身を除く): 28072980

約数列:

[1, 2, 3, 4, 6, 12, 691, 1382, 2073, 2531, 2764, 4146, 5062, 7593, 8292, 10124, 15186, 30372, 1748921, 3497842, 5246763, 6995684, 10493526, 20987052]

約数ペア:

[(1, 20987052), (2, 10493526), (3, 6995684), (4, 5246763), (6, 3497842), (12, 1748921), (691, 30372), (1382, 15186), (2073, 10124), (2531, 8292), (2764, 7593), (4146, 5062)]