81365724

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^2\times {\mathrm{18679}}^1$

素因数の和:18711

約数の個数: 54

約数和(自身を含む): 226084040

約数和(自身を除く): 144718316

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 121, 132, 198, 242, 363, 396, 484, 726, 1089, 1452, 2178, 4356, 18679, 37358, 56037, 74716, 112074, 168111, 205469, 224148, 336222, 410938, 616407, 672444, 821876, 1232814, 1849221, 2260159, 2465628, 3698442, 4520318, 6780477, 7396884, 9040636, 13560954, 20341431, 27121908, 40682862, 81365724]

約数ペア:

[(1, 81365724), (2, 40682862), (3, 27121908), (4, 20341431), (6, 13560954), (9, 9040636), (11, 7396884), (12, 6780477), (18, 4520318), (22, 3698442), (33, 2465628), (36, 2260159), (44, 1849221), (66, 1232814), (99, 821876), (121, 672444), (132, 616407), (198, 410938), (242, 336222), (363, 224148), (396, 205469), (484, 168111), (726, 112074), (1089, 74716), (1452, 56037), (2178, 37358), (4356, 18679)]