81744891

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{509}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 119854080

約数和(自身を除く): 38109189

約数列:

[1, 3, 17, 47, 51, 67, 141, 201, 509, 799, 1139, 1527, 2397, 3149, 3417, 8653, 9447, 23923, 25959, 34103, 53533, 71769, 102309, 160599, 406691, 579751, 1220073, 1602841, 1739253, 4808523, 27248297, 81744891]

約数ペア:

[(1, 81744891), (3, 27248297), (17, 4808523), (47, 1739253), (51, 1602841), (67, 1220073), (141, 579751), (201, 406691), (509, 160599), (799, 102309), (1139, 71769), (1527, 53533), (2397, 34103), (3149, 25959), (3417, 23923), (8653, 9447)]