28154049

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{397}}^1$

素因数の和:725

約数の個数: 32

約数和(自身を含む): 47072256

約数和(自身を除く): 18918207

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 307, 397, 921, 1191, 2149, 2779, 3377, 4367, 6447, 8337, 10131, 13101, 23639, 30569, 70917, 91707, 121879, 365637, 853153, 1340669, 2559459, 4022007, 9384683, 28154049]

約数ペア:

[(1, 28154049), (3, 9384683), (7, 4022007), (11, 2559459), (21, 1340669), (33, 853153), (77, 365637), (231, 121879), (307, 91707), (397, 70917), (921, 30569), (1191, 23639), (2149, 13101), (2779, 10131), (3377, 8337), (4367, 6447)]