27811917

素因数分解:

$3^4\times 7^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:471

約数の個数: 40

約数和(自身を含む): 47919872

約数和(自身を除く): 20107955

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 181, 189, 271, 543, 567, 813, 1267, 1629, 1897, 2439, 3801, 4887, 5691, 7317, 11403, 14661, 17073, 21951, 34209, 49051, 51219, 102627, 147153, 153657, 343357, 441459, 1030071, 1324377, 3090213, 3973131, 9270639, 27811917]

約数ペア:

[(1, 27811917), (3, 9270639), (7, 3973131), (9, 3090213), (21, 1324377), (27, 1030071), (63, 441459), (81, 343357), (181, 153657), (189, 147153), (271, 102627), (543, 51219), (567, 49051), (813, 34209), (1267, 21951), (1629, 17073), (1897, 14661), (2439, 11403), (3801, 7317), (4887, 5691)]