78325821

素因数分解:

$3^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{6311}}^1$

素因数の和:6521

約数の個数: 24

約数和(自身を含む): 129976704

約数和(自身を除く): 51650883

約数列:

[1, 3, 7, 9, 21, 63, 197, 591, 1379, 1773, 4137, 6311, 12411, 18933, 44177, 56799, 132531, 397593, 1243267, 3729801, 8702869, 11189403, 26108607, 78325821]

約数ペア:

[(1, 78325821), (3, 26108607), (7, 11189403), (9, 8702869), (21, 3729801), (63, 1243267), (197, 397593), (591, 132531), (1379, 56799), (1773, 44177), (4137, 18933), (6311, 12411)]