28438839

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1163}}^1$

素因数の和:1212

約数の個数: 48

約数和(自身を含む): 50843520

約数和(自身を除く): 22404681

約数列:

[1, 3, 9, 11, 13, 19, 33, 39, 57, 99, 117, 143, 171, 209, 247, 429, 627, 741, 1163, 1287, 1881, 2223, 2717, 3489, 8151, 10467, 12793, 15119, 22097, 24453, 38379, 45357, 66291, 115137, 136071, 166309, 198873, 243067, 287261, 498927, 729201, 861783, 1496781, 2187603, 2585349, 3159871, 9479613, 28438839]

約数ペア:

[(1, 28438839), (3, 9479613), (9, 3159871), (11, 2585349), (13, 2187603), (19, 1496781), (33, 861783), (39, 729201), (57, 498927), (99, 287261), (117, 243067), (143, 198873), (171, 166309), (209, 136071), (247, 115137), (429, 66291), (627, 45357), (741, 38379), (1163, 24453), (1287, 22097), (1881, 15119), (2223, 12793), (2717, 10467), (3489, 8151)]