51491133

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{4049}}^1$

素因数の和:4218

約数の個数: 20

約数和(自身を含む): 77427900

約数和(自身を除く): 25936767

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 4049, 4239, 12147, 12717, 36441, 109323, 327969, 635693, 1907079, 5721237, 17163711, 51491133]

約数ペア:

[(1, 51491133), (3, 17163711), (9, 5721237), (27, 1907079), (81, 635693), (157, 327969), (471, 109323), (1413, 36441), (4049, 12717), (4239, 12147)]