27765213

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{9941}}^1$

素因数の和:9977

約数の個数: 24

約数和(自身を含む): 45335520

約数和(自身を除く): 17570307

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 9941, 29823, 69587, 188879, 208761, 487109, 566637, 1322153, 1461327, 3966459, 9255071, 27765213]

約数ペア:

[(1, 27765213), (3, 9255071), (7, 3966459), (19, 1461327), (21, 1322153), (49, 566637), (57, 487109), (133, 208761), (147, 188879), (399, 69587), (931, 29823), (2793, 9941)]