208354671

素因数分解:

$3^2\times 7^1\times {\mathrm{487}}^1\times {\mathrm{6791}}^1$

素因数の和:7291

約数の個数: 24

約数和(自身を含む): 344707584

約数和(自身を除く): 136352913

約数列:

[1, 3, 7, 9, 21, 63, 487, 1461, 3409, 4383, 6791, 10227, 20373, 30681, 47537, 61119, 142611, 427833, 3307217, 9921651, 23150519, 29764953, 69451557, 208354671]

約数ペア:

[(1, 208354671), (3, 69451557), (7, 29764953), (9, 23150519), (21, 9921651), (63, 3307217), (487, 427833), (1461, 142611), (3409, 61119), (4383, 47537), (6791, 30681), (10227, 20373)]