128457378

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{1019503}}^1$

素因数の和:1019518

約数の個数: 24

約数和(自身を含む): 318085248

約数和(自身を除く): 189627870

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 1019503, 2039006, 3058509, 6117018, 7136521, 9175527, 14273042, 18351054, 21409563, 42819126, 64228689, 128457378]

約数ペア:

[(1, 128457378), (2, 64228689), (3, 42819126), (6, 21409563), (7, 18351054), (9, 14273042), (14, 9175527), (18, 7136521), (21, 6117018), (42, 3058509), (63, 2039006), (126, 1019503)]