71742447

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{373}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 123222528

約数和(自身を除く): 51480081

約数列:

[1, 3, 7, 9, 21, 43, 63, 71, 129, 213, 301, 373, 387, 497, 639, 903, 1119, 1491, 2611, 2709, 3053, 3357, 4473, 7833, 9159, 16039, 21371, 23499, 26483, 27477, 48117, 64113, 79449, 112273, 144351, 185381, 192339, 238347, 336819, 556143, 1010457, 1138769, 1668429, 3416307, 7971383, 10248921, 23914149, 71742447]

約数ペア:

[(1, 71742447), (3, 23914149), (7, 10248921), (9, 7971383), (21, 3416307), (43, 1668429), (63, 1138769), (71, 1010457), (129, 556143), (213, 336819), (301, 238347), (373, 192339), (387, 185381), (497, 144351), (639, 112273), (903, 79449), (1119, 64113), (1491, 48117), (2611, 27477), (2709, 26483), (3053, 23499), (3357, 21371), (4473, 16039), (7833, 9159)]