20678013

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 30617600

約数和(自身を除く): 9939587

約数列:

[1, 3, 9, 79, 127, 229, 237, 381, 687, 711, 1143, 2061, 10033, 18091, 29083, 30099, 54273, 87249, 90297, 162819, 261747, 2297557, 6892671, 20678013]

約数ペア:

[(1, 20678013), (3, 6892671), (9, 2297557), (79, 261747), (127, 162819), (229, 90297), (237, 87249), (381, 54273), (687, 30099), (711, 29083), (1143, 18091), (2061, 10033)]