205011639

素因数分解:

$3^2\times 7^2\times {\mathrm{464879}}^1$

素因数の和:464899

約数の個数: 18

約数和(自身を含む): 344476080

約数和(自身を除く): 139464441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 464879, 1394637, 3254153, 4183911, 9762459, 22779071, 29287377, 68337213, 205011639]

約数ペア:

[(1, 205011639), (3, 68337213), (7, 29287377), (9, 22779071), (21, 9762459), (49, 4183911), (63, 3254153), (147, 1394637), (441, 464879)]