28919889

素因数分解:

$3^3\times {\mathrm{787}}^1\times {\mathrm{1361}}^1$

素因数の和:2157

約数の個数: 16

約数和(自身を含む): 42930240

約数和(自身を除く): 14010351

約数列:

[1, 3, 9, 27, 787, 1361, 2361, 4083, 7083, 12249, 21249, 36747, 1071107, 3213321, 9639963, 28919889]

約数ペア:

[(1, 28919889), (3, 9639963), (9, 3213321), (27, 1071107), (787, 36747), (1361, 21249), (2361, 12249), (4083, 7083)]