27770799

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 46366080

約数和(自身を除く): 18595281

約数列:

[1, 3, 7, 19, 21, 49, 57, 61, 133, 147, 163, 183, 399, 427, 489, 931, 1141, 1159, 1281, 2793, 2989, 3097, 3423, 3477, 7987, 8113, 8967, 9291, 9943, 21679, 23961, 24339, 29829, 56791, 65037, 69601, 151753, 170373, 188917, 208803, 455259, 487207, 566751, 1322419, 1461621, 3967257, 9256933, 27770799]

約数ペア:

[(1, 27770799), (3, 9256933), (7, 3967257), (19, 1461621), (21, 1322419), (49, 566751), (57, 487207), (61, 455259), (133, 208803), (147, 188917), (163, 170373), (183, 151753), (399, 69601), (427, 65037), (489, 56791), (931, 29829), (1141, 24339), (1159, 23961), (1281, 21679), (2793, 9943), (2989, 9291), (3097, 8967), (3423, 8113), (3477, 7987)]