27921681

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:485

約数の個数: 24

約数和(自身を含む): 41258880

約数和(自身を除く): 13337199

約数列:

[1, 3, 9, 79, 173, 227, 237, 519, 681, 711, 1557, 2043, 13667, 17933, 39271, 41001, 53799, 117813, 123003, 161397, 353439, 3102409, 9307227, 27921681]

約数ペア:

[(1, 27921681), (3, 9307227), (9, 3102409), (79, 353439), (173, 161397), (227, 123003), (237, 117813), (519, 53799), (681, 41001), (711, 39271), (1557, 17933), (2043, 13667)]