51303819

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1811}}^1$

素因数の和:1911

約数の個数: 32

約数和(自身を含む): 83496960

約数和(自身を除く): 32193141

約数列:

[1, 3, 7, 19, 21, 57, 71, 133, 213, 399, 497, 1349, 1491, 1811, 4047, 5433, 9443, 12677, 28329, 34409, 38031, 103227, 128581, 240863, 385743, 722589, 900067, 2443039, 2700201, 7329117, 17101273, 51303819]

約数ペア:

[(1, 51303819), (3, 17101273), (7, 7329117), (19, 2700201), (21, 2443039), (57, 900067), (71, 722589), (133, 385743), (213, 240863), (399, 128581), (497, 103227), (1349, 38031), (1491, 34409), (1811, 28329), (4047, 12677), (5433, 9443)]