20940831

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{811}}^1$

素因数の和:987

約数の個数: 24

約数和(自身を含む): 32090240

約数和(自身を除く): 11149409

約数列:

[1, 3, 9, 19, 57, 151, 171, 453, 811, 1359, 2433, 2869, 7299, 8607, 15409, 25821, 46227, 122461, 138681, 367383, 1102149, 2326759, 6980277, 20940831]

約数ペア:

[(1, 20940831), (3, 6980277), (9, 2326759), (19, 1102149), (57, 367383), (151, 138681), (171, 122461), (453, 46227), (811, 25821), (1359, 15409), (2433, 8607), (2869, 7299)]