78540129

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{6469}}^1$

素因数の和:6565

約数の個数: 24

約数和(自身を含む): 121118400

約数和(自身を除く): 42578271

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 4047, 6469, 12141, 19407, 58221, 122911, 368733, 459299, 1106199, 1377897, 4133691, 8726681, 26180043, 78540129]

約数ペア:

[(1, 78540129), (3, 26180043), (9, 8726681), (19, 4133691), (57, 1377897), (71, 1106199), (171, 459299), (213, 368733), (639, 122911), (1349, 58221), (4047, 19407), (6469, 12141)]