3981964

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2003}}^1$

素因数の和:2085

約数の個数: 24

約数和(自身を含む): 8080128

約数和(自身を除く): 4098164

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 2003, 4006, 8012, 14021, 28042, 56084, 142213, 284426, 568852, 995491, 1990982, 3981964]

約数ペア:

[(1, 3981964), (2, 1990982), (4, 995491), (7, 568852), (14, 284426), (28, 142213), (71, 56084), (142, 28042), (284, 14021), (497, 8012), (994, 4006), (1988, 2003)]