28239757

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16333}}^1$

素因数の和:16372

約数の個数: 16

約数和(自身を含む): 36588160

約数和(自身を除く): 8348403

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 16333, 114331, 212329, 310327, 1486303, 2172289, 4034251, 28239757]

約数ペア:

[(1, 28239757), (7, 4034251), (13, 2172289), (19, 1486303), (91, 310327), (133, 212329), (247, 114331), (1729, 16333)]