643966281

素因数分解:

$3^5\times 7^2\times {\mathrm{54083}}^1$

素因数の和:54112

約数の個数: 36

約数和(自身を含む): 1122134832

約数和(自身を除く): 478168551

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 1323, 1701, 3969, 11907, 54083, 162249, 378581, 486747, 1135743, 1460241, 2650067, 3407229, 4380723, 7950201, 10221687, 13142169, 23850603, 30665061, 71551809, 91995183, 214655427, 643966281]

約数ペア:

[(1, 643966281), (3, 214655427), (7, 91995183), (9, 71551809), (21, 30665061), (27, 23850603), (49, 13142169), (63, 10221687), (81, 7950201), (147, 4380723), (189, 3407229), (243, 2650067), (441, 1460241), (567, 1135743), (1323, 486747), (1701, 378581), (3969, 162249), (11907, 54083)]