21309051

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{1321}}^1$

素因数の和:1626

約数の個数: 16

約数和(自身を含む): 30035840

約数和(自身を除く): 8726789

約数列:

[1, 3, 19, 57, 283, 849, 1321, 3963, 5377, 16131, 25099, 75297, 373843, 1121529, 7103017, 21309051]

約数ペア:

[(1, 21309051), (3, 7103017), (19, 1121529), (57, 373843), (283, 75297), (849, 25099), (1321, 16131), (3963, 5377)]