28911407

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{673}}^1$

素因数の和:735

約数の個数: 24

約数和(自身を含む): 36978336

約数和(自身を除く): 8066929

約数列:

[1, 7, 17, 19, 119, 133, 323, 361, 673, 2261, 2527, 4711, 6137, 11441, 12787, 42959, 80087, 89509, 217379, 242953, 1521653, 1700671, 4130201, 28911407]

約数ペア:

[(1, 28911407), (7, 4130201), (17, 1700671), (19, 1521653), (119, 242953), (133, 217379), (323, 89509), (361, 80087), (673, 42959), (2261, 12787), (2527, 11441), (4711, 6137)]