661844961

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{6991}}^1$

素因数の和:7221

約数の個数: 24

約数和(自身を含む): 976586624

約数和(自身を除く): 314741663

約数列:

[1, 3, 9, 67, 157, 201, 471, 603, 1413, 6991, 10519, 20973, 31557, 62919, 94671, 468397, 1097587, 1405191, 3292761, 4215573, 9878283, 73538329, 220614987, 661844961]

約数ペア:

[(1, 661844961), (3, 220614987), (9, 73538329), (67, 9878283), (157, 4215573), (201, 3292761), (471, 1405191), (603, 1097587), (1413, 468397), (6991, 94671), (10519, 62919), (20973, 31557)]