208794819

素因数分解:

$3^1\times {\mathrm{19}}^3\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:272

約数の個数: 32

約数和(自身を含む): 300025600

約数和(自身を除く): 91230781

約数列:

[1, 3, 19, 57, 73, 139, 219, 361, 417, 1083, 1387, 2641, 4161, 6859, 7923, 10147, 20577, 26353, 30441, 50179, 79059, 150537, 192793, 500707, 578379, 953401, 1502121, 2860203, 3663067, 10989201, 69598273, 208794819]

約数ペア:

[(1, 208794819), (3, 69598273), (19, 10989201), (57, 3663067), (73, 2860203), (139, 1502121), (219, 953401), (361, 578379), (417, 500707), (1083, 192793), (1387, 150537), (2641, 79059), (4161, 50179), (6859, 30441), (7923, 26353), (10147, 20577)]