28105731

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{54787}}^1$

素因数の和:54815

約数の個数: 16

約数和(自身を含む): 43830400

約数和(自身を除く): 15724669

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 54787, 164361, 493083, 1040953, 1479249, 3122859, 9368577, 28105731]

約数ペア:

[(1, 28105731), (3, 9368577), (9, 3122859), (19, 1479249), (27, 1040953), (57, 493083), (171, 164361), (513, 54787)]