51216705

素因数分解:

$3^4\times 5^1\times {\mathrm{126461}}^1$

素因数の和:126478

約数の個数: 20

約数和(自身を含む): 91811412

約数和(自身を除く): 40594707

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 126461, 379383, 632305, 1138149, 1896915, 3414447, 5690745, 10243341, 17072235, 51216705]

約数ペア:

[(1, 51216705), (3, 17072235), (5, 10243341), (9, 5690745), (15, 3414447), (27, 1896915), (45, 1138149), (81, 632305), (135, 379383), (405, 126461)]