208678977

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{25849}}^1$

素因数の和:25894

約数の個数: 32

約数和(自身を含む): 347424000

約数和(自身を除く): 138745023

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 117, 207, 299, 351, 621, 897, 2691, 8073, 25849, 77547, 232641, 336037, 594527, 697923, 1008111, 1783581, 3024333, 5350743, 7728851, 9072999, 16052229, 23186553, 69559659, 208678977]

約数ペア:

[(1, 208678977), (3, 69559659), (9, 23186553), (13, 16052229), (23, 9072999), (27, 7728851), (39, 5350743), (69, 3024333), (117, 1783581), (207, 1008111), (299, 697923), (351, 594527), (621, 336037), (897, 232641), (2691, 77547), (8073, 25849)]