201815727

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{739}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 289132800

約数和(自身を除く): 87317073

約数列:

[1, 3, 29, 43, 73, 87, 129, 219, 739, 1247, 2117, 2217, 3139, 3741, 6351, 9417, 21431, 31777, 53947, 64293, 91031, 95331, 161841, 273093, 921533, 1564463, 2319721, 2764599, 4693389, 6959163, 67271909, 201815727]

約数ペア:

[(1, 201815727), (3, 67271909), (29, 6959163), (43, 4693389), (73, 2764599), (87, 2319721), (129, 1564463), (219, 921533), (739, 273093), (1247, 161841), (2117, 95331), (2217, 91031), (3139, 64293), (3741, 53947), (6351, 31777), (9417, 21431)]