71891841

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{1217}}^1$

素因数の和:1353

約数の個数: 32

約数和(自身を含む): 114589440

約数和(自身を除く): 42697599

約数列:

[1, 3, 7, 21, 29, 87, 97, 203, 291, 609, 679, 1217, 2037, 2813, 3651, 8439, 8519, 19691, 25557, 35293, 59073, 105879, 118049, 247051, 354147, 741153, 826343, 2479029, 3423421, 10270263, 23963947, 71891841]

約数ペア:

[(1, 71891841), (3, 23963947), (7, 10270263), (21, 3423421), (29, 2479029), (87, 826343), (97, 741153), (203, 354147), (291, 247051), (609, 118049), (679, 105879), (1217, 59073), (2037, 35293), (2813, 25557), (3651, 19691), (8439, 8519)]