31390527

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11239}}^1$

素因数の和:11275

約数の個数: 24

約数和(自身を含む): 51254400

約数和(自身を除く): 19863873

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 11239, 33717, 78673, 213541, 236019, 550711, 640623, 1494787, 1652133, 4484361, 10463509, 31390527]

約数ペア:

[(1, 31390527), (3, 10463509), (7, 4484361), (19, 1652133), (21, 1494787), (49, 640623), (57, 550711), (133, 236019), (147, 213541), (399, 78673), (931, 33717), (2793, 11239)]