28163781

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:323

約数の個数: 40

約数和(自身を含む): 45189144

約数和(自身を除く): 17025363

約数列:

[1, 3, 9, 17, 27, 51, 81, 113, 153, 181, 339, 459, 543, 1017, 1377, 1629, 1921, 3051, 3077, 4887, 5763, 9153, 9231, 14661, 17289, 20453, 27693, 51867, 61359, 83079, 155601, 184077, 249237, 347701, 552231, 1043103, 1656693, 3129309, 9387927, 28163781]

約数ペア:

[(1, 28163781), (3, 9387927), (9, 3129309), (17, 1656693), (27, 1043103), (51, 552231), (81, 347701), (113, 249237), (153, 184077), (181, 155601), (339, 83079), (459, 61359), (543, 51867), (1017, 27693), (1377, 20453), (1629, 17289), (1921, 14661), (3051, 9231), (3077, 9153), (4887, 5763)]