28048707

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1$

素因数の和:141

約数の個数: 48

約数和(自身を含む): 45757440

約数和(自身を除く): 17708733

約数列:

[1, 3, 9, 23, 27, 31, 47, 69, 93, 141, 207, 279, 423, 621, 713, 837, 961, 1081, 1269, 1457, 2139, 2883, 3243, 4371, 6417, 8649, 9729, 13113, 19251, 22103, 25947, 29187, 33511, 39339, 45167, 66309, 100533, 135501, 198927, 301599, 406503, 596781, 904797, 1038841, 1219509, 3116523, 9349569, 28048707]

約数ペア:

[(1, 28048707), (3, 9349569), (9, 3116523), (23, 1219509), (27, 1038841), (31, 904797), (47, 596781), (69, 406503), (93, 301599), (141, 198927), (207, 135501), (279, 100533), (423, 66309), (621, 45167), (713, 39339), (837, 33511), (961, 29187), (1081, 25947), (1269, 22103), (1457, 19251), (2139, 13113), (2883, 9729), (3243, 8649), (4371, 6417)]