28327131

素因数分解:

$3^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2237}}^1$

素因数の和:2320

約数の個数: 32

約数和(自身を含む): 48698880

約数和(自身を除く): 20371749

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 189, 201, 469, 603, 1407, 1809, 2237, 4221, 6711, 12663, 15659, 20133, 46977, 60399, 140931, 149879, 422793, 449637, 1049153, 1348911, 3147459, 4046733, 9442377, 28327131]

約数ペア:

[(1, 28327131), (3, 9442377), (7, 4046733), (9, 3147459), (21, 1348911), (27, 1049153), (63, 449637), (67, 422793), (189, 149879), (201, 140931), (469, 60399), (603, 46977), (1407, 20133), (1809, 15659), (2237, 12663), (4221, 6711)]