821330289

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{50503}}^1$

素因数の和:50661

約数の個数: 24

約数和(自身を含む): 1286841920

約数和(自身を除く): 465511631

約数列:

[1, 3, 9, 13, 39, 117, 139, 417, 1251, 1807, 5421, 16263, 50503, 151509, 454527, 656539, 1969617, 5908851, 7019917, 21059751, 63179253, 91258921, 273776763, 821330289]

約数ペア:

[(1, 821330289), (3, 273776763), (9, 91258921), (13, 63179253), (39, 21059751), (117, 7019917), (139, 5908851), (417, 1969617), (1251, 656539), (1807, 454527), (5421, 151509), (16263, 50503)]